Cook County is the most populous
county
A county is a geographic region of a country used for administrative or other purposes Chambers Dictionary, L. Brookes (ed.), 2005, Chambers Harrap Publishers Ltd, Edinburgh in certain modern nations. The term is derived from the Old French ...
in the U.S. state of
Illinois
Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Rock ...
and the
second-most-populous county in the
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
, after
Los Angeles County, California
Los Angeles County, officially the County of Los Angeles, and sometimes abbreviated as L.A. County, is the List of the most populous counties in the United States, most populous county in the United States and in the U.S. state of California, ...
. More than 40% of all residents of Illinois live within Cook County. As of 2020, the population was 5,275,541. Its
county seat
A county seat is an administrative center, seat of government, or capital city of a county or civil parish. The term is in use in Canada, China, Hungary, Romania, Taiwan, and the United States. The equivalent term shire town is used in the US ...
is
Chicago
(''City in a Garden''); I Will
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, map_caption = Interactive Map of Chicago
, coordinates =
, coordinates_footnotes =
, subdivision_type = List of sovereign states, Count ...
, the most populous city in Illinois and the
third-most-populous city in the United States.
Cook County was incorporated in 1831 and named for
Daniel Pope Cook, an early Illinois statesman. It achieved its present boundaries in 1839. Within one hundred years, the county recorded explosive population growth going from a trading post village with a little over 600 residents to four million citizens, rivalling Paris by the
Great Depression
The Great Depression (19291939) was an economic shock that impacted most countries across the world. It was a period of economic depression that became evident after a major fall in stock prices in the United States. The economic contagio ...
. During the first half of the 20th century it had the absolute majority of Illinois's population.
There are more than 800 local governmental units and nearly 130 municipalities located wholly or partially within Cook County, the largest of which is
Chicago
(''City in a Garden''); I Will
, image_map =
, map_caption = Interactive Map of Chicago
, coordinates =
, coordinates_footnotes =
, subdivision_type = List of sovereign states, Count ...
. The city is home to approximately 54% of the entire county's population. The part of the county outside of the Chicago and
Evanston city limits is divided into 29
townships; these often divide or share governmental services with local municipalities. Townships within Chicago were abolished in 1902 but are retained for real estate assessment purposes.
Evanston Township was formerly coterminous with the City of Evanston but was abolished in 2014. County government is overseen by the
Cook County Board, and countywide state government offices include the
Circuit Court of Cook County
The Circuit Court of Cook County is the largest of the 24 judicial circuits in Illinois as well as one of the largest unified court systems in the United States — second only in size to the Superior Court of Los Angeles County since that cou ...
, the
Cook County State's Attorney, the
Cook County Sheriff
The Cook County Sheriff is the sheriff of Cook County, Illinois, heading the Cook County Sheriff's Office.
Office description
Terms are currently four-years in length.
Officeholders
Recent election results
, -
, colspan=16 style="text-a ...
, and the
Cook County Assessor
The Cook County Assessor is the assessor and county government officer of Cook County, Illinois.
Office description
Before the creation of the position of Cook County Assessor in 1932, the Cook County Board of Assessors completed assessments i ...
.
Geographically, the county is the sixth-largest in Illinois by land area and the largest by total area. It shares the state's
Lake Michigan
Lake Michigan is one of the five Great Lakes of North America. It is the second-largest of the Great Lakes by volume () and the third-largest by surface area (), after Lake Superior and Lake Huron. To the east, its basin is conjoined with that o ...
shoreline with
Lake County. Including its lake area, Cook County has a total area of , the largest county in Illinois, of which is land and (42.16%) is water. Land-use in Cook County is mostly urban and densely populated. Within Cook County, the State of Illinois took advantage of its Lake Michigan access and the
Chicago Portage
The Chicago Portage was an ancient portage that connected the Great Lakes waterway system with the Mississippi River system. Connecting these two great water trails meant comparatively easy access from the mouth of the St Lawrence River on the Atl ...
, beginning with the construction of the
Illinois and Michigan Canal in 1848. This helped make the region a central transit hub for the nation. Chicago, with its location on the
Great Lakes
The Great Lakes, also called the Great Lakes of North America, are a series of large interconnected freshwater lakes in the mid-east region of North America that connect to the Atlantic Ocean via the Saint Lawrence River. There are five lakes ...
and via the
St. Lawrence Seaway, is a global port city, giving Cook County an international shipping port.
Cook County's population is larger than that of 28 different
U.S. states and
territories
A territory is an area of land, sea, or space, particularly belonging or connected to a country, person, or animal.
In international politics, a territory is usually either the total area from which a state may extract power resources or a ...
, and larger than the population of 11 of the 13
Canadian provinces and territories. Cook County is included in the
Chicago metropolitan Combined Statistical Area (CSA), which has a population of approximately 10 million people.
History
Cook County was created on January 15, 1831, out of
Putnam County by an act of the
Illinois General Assembly
The Illinois General Assembly is the legislature of the U.S. state of Illinois. It has two chambers, the Illinois House of Representatives and the Illinois Senate. The General Assembly was created by the first state constitution adopted in 181 ...
. It was the 54th county established in Illinois and was named after
Daniel Cook, one of the earliest and youngest statesmen in Illinois history. He served as the second
U.S. Representative from Illinois and the state's first
Attorney General
In most common law jurisdictions, the attorney general or attorney-general (sometimes abbreviated AG or Atty.-Gen) is the main legal advisor to the government. The plural is attorneys general.
In some jurisdictions, attorneys general also have exec ...
. In 1839,
DuPage County
DuPage County ( ) is a county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2020 census, the population was 932,877, making it Illinois' second-most populous county. Its county seat ...
was carved out of Cook County.
File:Cook County Illinois 1831.png, Cook County from 1831 to 1836
File:Cook County Illinois 1836.png, Cook County 1836–39 after the creation of McHenry and Will
Will may refer to:
Common meanings
* Will and testament, instructions for the disposition of one's property after death
* Will (philosophy), or willpower
* Will (sociology)
* Will, volition (psychology)
* Will, a modal verb - see Shall and wi ...
Counties
File:Cook County Illinois 1839.png, Cook County's current size was formed in 1839 by the creation of DuPage County
DuPage County ( ) is a county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2020 census, the population was 932,877, making it Illinois' second-most populous county. Its county seat ...
.
The shape of Cook County and the neighboring counties has remained the same since DuPage County was formed. The population in each county and the split of agriculture compared to residential and industrial activity has changed dramatically over the intervening decades to 2020. The county began with 10,201 people in the Census of 1840, growing rapidly to 5,150,233 people estimated for 2019 by the US Census. Growth was rapid in the 19th century, with the County reaching 2.4 million people by 1910. In the 20th century, the County reached 5.1 million population.
Cook County is nearly completely developed, with little agricultural land remaining near the outer county boundaries.
Demographics
According to the
2000 Census there were 1,974,181 households, out of which 30.9% had children under the age of 18 living with them, 44.0% were married couples living together, 15.6% had a female householder with no husband present, and 35.7% were non-families. 29.4% of all households were someone living alone including 9.3% who were 65 years of age or older. The average household size was 2.68 and the average family size was 3.38.
In the county, the population age distribution was: 26.0% under the age of 18, 9.9% from 18 to 24, 31.7% from 25 to 44, 20.7% from 45 to 64, and 11.7% who were 65 years of age or older. The median age was 34 years. For every 100 females, there were 93.9 males. For every 100 females age 18 and over, there were 90.5 males.
The median income for a household in the county was $45,922, and the median income for a family was $53,784. Males had a median income of $40,690 versus $31,298 for females. The per capita income for the county was $23,227. About 10.6% of families and 13.5% of the population were below the poverty line, including 18.9% of those under age 18 and 10.3% of those age 65 or over.
As of the fourth quarter of 2021, the median home value in Cook County was $299,571, an increase of 11.7% from the prior year.
According to Census Bureau estimates, the county's population had decreased by 3.4% between the 2000 census and the 2010 census (5,194,675). The county's population had grown slightly again by 2017 (5,211,263).
Ethnicity
As of the
2010 Census, the population of the county was 5,194,675,
White American
White Americans are Americans who identify as and are perceived to be white people. This group constitutes the majority of the people in the United States. As of the 2020 Census, 61.6%, or 204,277,273 people, were white alone. This represented ...
s made up 55.4% of Cook County's population;
non-Hispanic whites
Non-Hispanic whites or Non-Latino whites are Americans who are classified as "white", and are not of Hispanic (also known as "Latino") heritage. The United States Census Bureau defines ''white'' to include European Americans, Middle Eastern Amer ...
represented 43.9% of the population. African Americans made up 24.8% of the population. Native Americans made up 0.4% of Cook County's population. Asian Americans made up 6.2% of the population (1.8% Indian, 1.2% Filipino, 1.2% Chinese, 0.7% Korean, 0.3% Vietnamese, 0.2% Japanese, 0.8% Other).
Pacific Islander American
Pacific Islander Americans (also known as Oceanian Americans) are Americans who are of Pacific Islander ancestry (or are descendants of the indigenous peoples of Oceania or of Austronesian descent). For its purposes, the United States census ...
s made up less than 0.1% of the population. People from other races made up 10.6% of the population; people from
two or more races
2 (two) is a number, numeral and digit. It is the natural number following 1 and preceding 3. It is the smallest and only even prime number. Because it forms the basis of a duality, it has religious and spiritual significance in many cultur ...
made up 2.5% of the county's population.
Hispanics and Latinos (of any race) made up 24.0% of Cook County's population.
As of the
2000 Census,
there were 5,376,741 people, 1,974,181 households, and 1,269,398 families residing in the county. The population density was . There were 2,096,121 housing units at an average density of . The racial makeup of the county was 56.27% white, 26.14%
Black
Black is a color which results from the absence or complete absorption of visible light. It is an achromatic color, without hue, like white and grey. It is often used symbolically or figuratively to represent darkness. Black and white have o ...
or African American, 0.29% Native American, 4.84%
Asian
Asian may refer to:
* Items from or related to the continent of Asia:
** Asian people, people in or descending from Asia
** Asian culture, the culture of the people from Asia
** Asian cuisine, food based on the style of food of the people from Asi ...
, 0.05% Pacific Islanders, 9.88% from other races, and 2.53% from two or more races. 19.93% of the population were
Hispanic
The term ''Hispanic'' ( es, hispano) refers to people, Spanish culture, cultures, or countries related to Spain, the Spanish language, or Hispanidad.
The term commonly applies to countries with a cultural and historical link to Spain and to Vic ...
or Latino of any race. 9.1% were of Polish, 8.1% German, 7.9% Irish and 5.7% Italian ancestry. 17.63% reported speaking Spanish at home; 3.13% speak
Polish
Polish may refer to:
* Anything from or related to Poland, a country in Europe
* Polish language
* Poles
Poles,, ; singular masculine: ''Polak'', singular feminine: ''Polka'' or Polish people, are a West Slavic nation and ethnic group, w ...
.
Whites (Hispanic and non-Hispanic) number roughly 2,793,500. There are about 2,372,500 non-Hispanic whites residing in Cook County. Sizeable non-Hispanic white populations are those of
German
German(s) may refer to:
* Germany (of or related to)
** Germania (historical use)
* Germans, citizens of Germany, people of German ancestry, or native speakers of the German language
** For citizens of Germany, see also German nationality law
**Ge ...
(11.4%),
Irish
Irish may refer to:
Common meanings
* Someone or something of, from, or related to:
** Ireland, an island situated off the north-western coast of continental Europe
***Éire, Irish language name for the isle
** Northern Ireland, a constituent unit ...
(10.3%),
Polish
Polish may refer to:
* Anything from or related to Poland, a country in Europe
* Polish language
* Poles
Poles,, ; singular masculine: ''Polak'', singular feminine: ''Polka'' or Polish people, are a West Slavic nation and ethnic group, w ...
(9.7%),
Italian
Italian(s) may refer to:
* Anything of, from, or related to the people of Italy over the centuries
** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom
** Italian language, a Romance language
*** Regional Ita ...
(6.1%), and
British
British may refer to:
Peoples, culture, and language
* British people, nationals or natives of the United Kingdom, British Overseas Territories, and Crown Dependencies.
** Britishness, the British identity and common culture
* British English, ...
(4.1%) descent. There are also significant groups of
Swedish
Swedish or ' may refer to:
Anything from or related to Sweden, a country in Northern Europe. Or, specifically:
* Swedish language, a North Germanic language spoken primarily in Sweden and Finland
** Swedish alphabet, the official alphabet used by ...
(1.5%),
Russian
Russian(s) refers to anything related to Russia, including:
*Russians (, ''russkiye''), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries
*Rossiyane (), Russian language term for all citizens and peo ...
(1.5%),
French (1.3%),
Greek
Greek may refer to:
Greece
Anything of, from, or related to Greece, a country in Southern Europe:
*Greeks, an ethnic group.
*Greek language, a branch of the Indo-European language family.
**Proto-Greek language, the assumed last common ancestor ...
(1.2%),
Czech
Czech may refer to:
* Anything from or related to the Czech Republic, a country in Europe
** Czech language
** Czechs, the people of the area
** Czech culture
** Czech cuisine
* One of three mythical brothers, Lech, Czech, and Rus'
Places
* Czech, ...
(1.0%),
Dutch
Dutch commonly refers to:
* Something of, from, or related to the Netherlands
* Dutch people ()
* Dutch language ()
Dutch may also refer to:
Places
* Dutch, West Virginia, a community in the United States
* Pennsylvania Dutch Country
People E ...
(1.0%),
Lithuanian (0.9%), and
Norwegian
Norwegian, Norwayan, or Norsk may refer to:
*Something of, from, or related to Norway, a country in northwestern Europe
* Norwegians, both a nation and an ethnic group native to Norway
* Demographics of Norway
*The Norwegian language, including ...
(0.8%) descent.
Black Americans are the second largest racial group. Black Americans form over one-quarter (25.4%) of Cook County's population. Blacks of non-Hispanic origin form 25.2% of the population; black Hispanics make up the remaining 0.2% of the populace. There are roughly 1,341,000 African Americans of both Hispanic and non-Hispanic origin living in Cook County; 1,328,000 are non-Hispanic blacks. Roughly 52,500 people were of Sub-Saharan African ancestry, making up 1.0% of the total population.
Approximately 10,300 residents of Cook County are of Native American ancestry. They consist of
Cherokee
The Cherokee (; chr, ᎠᏂᏴᏫᏯᎢ, translit=Aniyvwiyaʔi or Anigiduwagi, or chr, ᏣᎳᎩ, links=no, translit=Tsalagi) are one of the indigenous peoples of the Southeastern Woodlands of the United States. Prior to the 18th century, t ...
,
Chippewa,
Navajo
The Navajo (; British English: Navaho; nv, Diné or ') are a Native American people of the Southwestern United States.
With more than 399,494 enrolled tribal members , the Navajo Nation is the largest federally recognized tribe in the United ...
, and
Sioux
The Sioux or Oceti Sakowin (; Dakota language, Dakota: Help:IPA, /otʃʰeːtʰi ʃakoːwĩ/) are groups of Native Americans in the United States, Native American tribes and First Nations in Canada, First Nations peoples in North America. The ...
. Native Americans of Hispanic origin represent a sizeable portion of the Native American population. Nearly 6,000 Native Americans are of non-Hispanic origin, and some 4,300 are of Hispanic origin. Over 40% of the Native American racial group is of Hispanic descent.
Asian Americans are a very sizeable racial group in the county, numbering about 301,000. The Asian population is ethnically diverse, and includes roughly 87,900
Indians, 61,700
Filipinos
Filipinos ( tl, Mga Pilipino) are the people who are citizens of or native to the Philippines. The majority of Filipinos today come from various Austronesian ethnolinguistic groups, all typically speaking either Filipino, English and/or othe ...
, 60,700
Chinese
Chinese can refer to:
* Something related to China
* Chinese people, people of Chinese nationality, citizenship, and/or ethnicity
**''Zhonghua minzu'', the supra-ethnic concept of the Chinese nation
** List of ethnic groups in China, people of ...
, 35,000
Koreans
Koreans ( South Korean: , , North Korean: , ; see names of Korea) are an East Asian ethnic group native to the Korean Peninsula.
Koreans mainly live in the two Korean nation states: North Korea and South Korea (collectively and simply refe ...
, 13,700
Vietnamese
Vietnamese may refer to:
* Something of, from, or related to Vietnam, a country in Southeast Asia
** A citizen of Vietnam. See Demographics of Vietnam.
* Vietnamese people, or Kinh people, a Southeast Asian ethnic group native to Vietnam
** Overse ...
, and 11,100
Japanese
Japanese may refer to:
* Something from or related to Japan, an island country in East Asia
* Japanese language, spoken mainly in Japan
* Japanese people, the ethnic group that identifies with Japan through ancestry or culture
** Japanese diaspor ...
. Roughly 30,800 are of other Asian ethnic groups, such as
Thai
Thai or THAI may refer to:
* Of or from Thailand, a country in Southeast Asia
** Thai people, the dominant ethnic group of Thailand
** Thai language, a Tai-Kadai language spoken mainly in and around Thailand
*** Thai script
*** Thai (Unicode block ...
,
Cambodian
Cambodian usually refers to:
* Something of, from, or related to the country of Cambodia
** Cambodian people (or Khmer people)
** Cambodian language (or Khmer language)
** For citizens and nationals of Cambodia, see Demographics of Cambodia
** Fo ...
, and
Hmong
Hmong may refer to:
* Hmong people, an ethnic group living mainly in Southwest China, Vietnam, Laos, and Thailand
* Hmong cuisine
* Hmong customs and culture
** Hmong music
** Hmong textile art
* Hmong language, a continuum of closely related to ...
.
Approximately 3,000 residents are of Pacific Islander heritage. This group includes roughly
Native Hawaiians
Native Hawaiians (also known as Indigenous Hawaiians, Kānaka Maoli, Aboriginal Hawaiians, First Hawaiians, or simply Hawaiians) ( haw, kānaka, , , and ), are the indigenous ethnic group of Polynesian people of the Hawaiian Islands.
Hawaii ...
, Guamanians,
Samoans
Samoans or Samoan people ( sm, tagata Sāmoa) are the indigenous Polynesian people of the Samoan Islands, an archipelago in Polynesia, who speak the Samoan language. The group's home islands are politically and geographically divided between t ...
, and various people of other Pacific Islander groups.
Hispanic and Latino Americans make up over one-fifth (22.8%) of Cook County's population. Roughly 1,204,000 Latinos live in the county.
Mexicans
Mexicans ( es, mexicanos) are the citizens of the United Mexican States.
The most spoken language by Mexicans is Spanish language, Spanish, but some may also speak languages from 68 different Languages of Mexico, Indigenous linguistic groups ...
are the most common Latino group. Cook County's 925,000 Mexican Americans make up 17.5% of its population. Roughly 127,000
Puerto Ricans
Puerto Ricans ( es, Puertorriqueños; or boricuas) are the people of Puerto Rico, the inhabitants, and citizens of the Commonwealth of Puerto Rico and their descendants.
Overview
The culture held in common by most Puerto Ricans is referred t ...
live in the county, while over 12,200
Cubans
Cubans ( es, Cubanos) are people born in Cuba and people with Cuban citizenship. Cuba is a multi-ethnic nation, home to people of different ethnic, religious and national backgrounds.
Racial and ethnic groups
Census
The population of Cuba wa ...
reside in the county. There are some 140,000 Hispanics and Latinos of other nationalities living in Cook County (i.e.
Colombian,
Bolivian
Bolivian may refer to:
* Something of, or related to Bolivia
** Bolivian people
** Demographics of Bolivia
** Culture of Bolivia
* SS ''Bolivian'', a British-built standard cargo ship
A cargo ship or freighter is a merchant ship that carries ...
, etc.), and they collectively make up 2.6% of the county's population.
Religion
In 2010 statistics, the largest religious group in Cook County was the
Archdiocese of Chicago
The Archdiocese of Chicago ( la, Archidiœcesis Chicagiensis) is a Latin Church ecclesiastical jurisdiction or archdiocese of the Catholic Church located in Northeastern Illinois, in the United States. It was established as a diocese in 1843 and ...
, with 1,947,223 Catholics worshipping at 371 parishes, followed by 209,195
non-denominational
A non-denominational person or organization is one that does not follow (or is not restricted to) any particular or specific religious denomination.
Overview
The term has been used in the context of various faiths including Jainism, Baháʼí Fait ...
adherents with 486 congregations, an estimated 201,152
Muslims
Muslims ( ar, المسلمون, , ) are people who adhere to Islam, a monotheistic religion belonging to the Abrahamic tradition. They consider the Quran, the foundational religious text of Islam, to be the verbatim word of the God of Abraha ...
with 62 congregations, 68,865
NBC
The National Broadcasting Company (NBC) is an American English-language commercial broadcast television and radio network. The flagship property of the NBC Entertainment division of NBCUniversal, a division of Comcast, its headquarters are l ...
Baptists with 99 congregations, 49,925
ELCA Lutherans with 145 congregations, 49,909
SBC Baptists with 181 congregations, 45,979
LCMS Lutherans with 120 congregations, 39,866
UCC The initialism UCC may stand for:
Law
* Uniform civil code of India, referring to proposed Civil code in the legal system of India, which would apply equally to all irrespective of their religion
* Uniform Commercial Code, a 1952 uniform act to ...
Christians with 101 congregations, 33,584
UMC Methodists with 121 congregations, and 32,646
AG Pentecostals with 64 congregations. Altogether, 59.6% of the population was claimed as members by religious congregations, although members of historically African-American denominations were underrepresented due to incomplete information. In 2014, Cook County had 2,001 religious organizations, second only to
Los Angeles County
Los Angeles County, officially the County of Los Angeles, and sometimes abbreviated as L.A. County, is the most populous county in the United States and in the U.S. state of California, with 9,861,224 residents estimated as of 2022. It is the ...
out of all US counties.
Geography
According to the
U.S. Census Bureau
The United States Census Bureau (USCB), officially the Bureau of the Census, is a principal agency of the U.S. Federal Statistical System, responsible for producing data about the American people and economy. The Census Bureau is part of the ...
, the county has a total area of , of which is land and (42.2%) is water.
It is the sixth largest county in Illinois by land area, and the largest in total area. Most of the water is in
Lake Michigan
Lake Michigan is one of the five Great Lakes of North America. It is the second-largest of the Great Lakes by volume () and the third-largest by surface area (), after Lake Superior and Lake Huron. To the east, its basin is conjoined with that o ...
. The highest point is more than ,
and is in northwest Barrington Township, in the northwest corner of the county. The lowest point is less than ,
along the
Lake Michigan
Lake Michigan is one of the five Great Lakes of North America. It is the second-largest of the Great Lakes by volume () and the third-largest by surface area (), after Lake Superior and Lake Huron. To the east, its basin is conjoined with that o ...
shoreline.
Climate and weather
In July, temperatures in Chicago, Cook County average daytime highs of , and nighttime lows of ; and January daytime highs of , and nighttime lows of . Winter temperatures will sometimes veer above , and, although not common, have also risen over on some winter days. Average monthly precipitation ranged from in June to in February.
Cook County is among the few counties in the United States to border two counties with the same name (
Lake County, Illinois
Lake County is situated in the northeastern corner of the U.S. state of Illinois, along the shores of Lake Michigan. As of the 2020 census, it has a population of 714,342, making it the third-most populous county in Illinois. Its county seat ...
and
Lake County, Indiana
Lake County is a county located in the U.S. state of Indiana. In 2020, its population was 498,700, making it Indiana's second-most populous county. The county seat is Crown Point. The county is part of Northwest Indiana and the Chicago metropo ...
). Illinois has two such counties (
Randolph County Randolph County is the name of eight counties in the United States:
*Randolph County, Alabama
*Randolph County, Arkansas
*Randolph County, Georgia
*Randolph County, Illinois
*Randolph County, Indiana
*Randolph County, Missouri
*Randolph County, Nort ...
borders both
Perry County, Illinois
Perry County is in Illinois. According to the 2010 census, it had a population of 22,350. Its county seat is Pinckneyville. It is located in the southern portion of Illinois known as " Little Egypt".
History
Perry County was formed in 1827 o ...
and
Perry County, Missouri
Perry County is a county located in the southeastern portion of the U.S. state of Missouri. As of the 2020 census, the population was 18,956. Its county seat is Perryville. The county was officially organized on November 16, 1820 (effective ...
).
National protected areas
*
Chicago Portage National Historic Site
*
Pullman National Monument
Pullman may refer to:
Places in the United States
*Pullman, Chicago, Illinois
* Pullman, Michigan
* Pullman, Texas
* Pullman, Washington
* Pullman, West Virginia
* Pullman Lake, a lake in Minnesota
* Pullman neighborhood, in the city of Richmond, ...
Government and politics
Government
The government of Cook County is primarily composed of the
Board of Commissioners
A county commission (or a board of county commissioners) is a group of elected officials (county commissioners) collectively charged with administering the county government in some states of the United States; such commissions usually comprise ...
headed by the President of the County board, other elected officials such as the
Sheriff
A sheriff is a government official, with varying duties, existing in some countries with historical ties to England where the office originated. There is an analogous, although independently developed, office in Iceland that is commonly transla ...
,
State's Attorney
In the United States, a district attorney (DA), county attorney, state's attorney, prosecuting attorney, commonwealth's attorney, or state attorney is the chief prosecutor and/or chief law enforcement officer representing a U.S. state in a loc ...
, Treasurer, Board of Review, Clerk, Assessor, Recorder,
Circuit Court judges, and Circuit Court Clerk, as well as numerous other officers and entities. Cook County is the only
home rule
Home rule is government of a colony, dependent country, or region by its own citizens. It is thus the power of a part (administrative division) of a state or an external dependent country to exercise such of the state's powers of governance wit ...
county in Illinois. The ''Cook County Code'' is the
codification of Cook County's
local ordinance
A local ordinance is a law issued by a local government. such as a municipality, county, parish, prefecture, or the like.
China
In Hong Kong, all laws enacted by the territory's Legislative Council remain to be known as ''Ordinances'' () af ...
s. Cook County's current
County Board
A county board is a common form of county legislature, particular of counties in the United States.
Related forms of county government include:
* Board of Supervisors — a form of county legislature in some U.S. states
* County commission, ...
president is
Toni Preckwinkle
Toni Lynn Preckwinkle (née Reed; born March 17, 1947) is an American politician and the current County Board President in Cook County, Illinois, United States. She was first elected as President of the Cook County Board of Commissioners, the e ...
.
The
Circuit Court of Cook County
The Circuit Court of Cook County is the largest of the 24 judicial circuits in Illinois as well as one of the largest unified court systems in the United States — second only in size to the Superior Court of Los Angeles County since that cou ...
, which is an Illinois state court of
general jurisdiction
{{Globalize, article, USA, 2name=the United States, date=December 2010
A court of general jurisdiction is a court with authority to hear cases of all kinds – criminal, civil, family, probate, and so forth.
United States
All federal courts ar ...
is funded, in part, by Cook County, and accepts more than 1.2 million cases each year for filing. The
Cook County Department of Corrections, also known as the
Cook County Jail
The Cook County Jail, located on in South Lawndale, Chicago, Illinois, is operated by the Sheriff of Cook County. A city jail has existed on this site since after the Great Chicago Fire of 1871, but major County prisoners were not generally co ...
, is the largest single-site jail in the nation. The
Cook County Juvenile Detention Center, under the authority of the Chief Judge of the court, is the first juvenile center in the nation and one of the largest in the nation. The Cook County Law Library is the second-largest county law library in the nation.
The Bureau of Health Services administers the county's public health services and is the third-largest public health system in the nation. Three hospitals are part of this system:
John H. Stroger, Jr. Hospital of Cook County
The John H. Stroger Jr. Hospital of Cook County (formerly Cook County Hospital) is a public hospital in Chicago, Illinois, United States. It is part of the Cook County Health and Hospital System, along with Provident Hospital of Cook County and ...
,
Provident Hospital, and
Oak Forest Hospital of Cook County
Oak Forest Hospital of Cook County is a 600+ bed hospital located in south suburban Oak Forest, Illinois. It specializes in long-term care, ventilator care, chronic disease and rehabilitation services. It is part of the Cook County Bureau of ...
, along with over 30 clinics.
The Cook County Department of Transportation is responsible for the design and maintenance of roadways in the county. These thoroughfares are composed mostly of major and minor arterials, with a few local roads. Although the County Department of Transportation was instrumental in designing many of the expressways in the county, today they are under the jurisdiction of the state.
The
Cook County Forest Preserves
The Forest Preserve District of Cook County is a governmental commission in Cook County, Illinois, that owns and manages a network of open spaces, containing forest, prairie, wetland, streams, and lakes, that are mostly set aside as natural areas ...
, organized in 1915, is a separate, independent taxing body, but the Cook County Board of Commissioners also acts as its Board of Commissioners. The district is a belt of of forest reservations surrounding the city of Chicago. The
Brookfield Zoo
Brookfield Zoo, also known as the Chicago Zoological Park, is a zoo located in the Chicago suburb of Brookfield, Illinois. It houses around 450 species of animals in an area of . It opened on July 1, 1934, and quickly gained international recogn ...
(managed by the Chicago Zoological Society) and the
Chicago Botanic Garden
The Chicago Botanic Garden is a living plant museum situated on nine islands in the Cook County Forest Preserves. It features 27 display gardens in four natural habitats: McDonald Woods, Dixon Prairie, Skokie River Corridor, and Lakes and Shor ...
(managed by the Chicago Horticultural Society) are located in the forest preserves.
Cook County is the fifth-largest employer in Chicago.
In March 2008, the County Board increased the
sales tax
A sales tax is a tax paid to a governing body for the sales of certain goods and services. Usually laws allow the seller to collect funds for the tax from the consumer at the point of purchase. When a tax on goods or services is paid to a govern ...
by one percent to 1.75 percent. This followed a quarter-cent increase in
mass transit taxes. In Chicago, the rate increased to 10.25 percent, the steepest nominal rate of any major metropolitan area in America. In
Evanston, sales tax reached 10 percent and
Oak Lawn residents pay 9.5 percent. On July 22, 2008, the Cook County board voted against Cook County Commissioner's proposal to repeal the tax increase.
In 2016, Cook County joined Chicago in adopting a $13 hourly minimum wage. Cook County Board chairman John Daley called the wage hike "the moral and right thing to do." In June 2017, however, nearly 75
home rule
Home rule is government of a colony, dependent country, or region by its own citizens. It is thus the power of a part (administrative division) of a state or an external dependent country to exercise such of the state's powers of governance wit ...
municipalities passed measures opting themselves out of the increase.
Politics
The county has more
Democratic Party Democratic Party most often refers to:
*Democratic Party (United States)
Democratic Party and similar terms may also refer to:
Active parties Africa
*Botswana Democratic Party
*Democratic Party of Equatorial Guinea
*Gabonese Democratic Party
*Demo ...
members than any other Illinois county and it is one of the most Democratic counties in the United States. Since 1932, the majority of its voters have only supported a
Republican
Republican can refer to:
Political ideology
* An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law.
** Republicanism, the ideology in support of republics or agains ...
candidate in a Presidential election three times, all during national Republican landslides–
Dwight Eisenhower
Dwight David "Ike" Eisenhower (born David Dwight Eisenhower; ; October 14, 1890 – March 28, 1969) was an American military officer and statesman who served as the 34th president of the United States from 1953 to 1961. During World War II, ...
over native son
Adlai Stevenson II
Adlai Ewing Stevenson II (; February 5, 1900 – July 14, 1965) was an American politician and diplomat who was twice the Democratic nominee for President of the United States. He was the grandson of Adlai Stevenson I, the 23rd vice president of ...
in 1952 and 1956, and
Richard Nixon
Richard Milhous Nixon (January 9, 1913April 22, 1994) was the 37th president of the United States, serving from 1969 to 1974. A member of the Republican Party, he previously served as a representative and senator from California and was ...
over
George McGovern
George Stanley McGovern (July 19, 1922 – October 21, 2012) was an American historian and South Dakota politician who was a U.S. representative and three-term U.S. senator, and the Democratic Party presidential nominee in the 1972 pres ...
in 1972. Since then, the closest a Republican has come to carrying the county was in 1984, when
Ronald Reagan
Ronald Wilson Reagan ( ; February 6, 1911June 5, 2004) was an American politician, actor, and union leader who served as the 40th president of the United States from 1981 to 1989. He also served as the 33rd governor of California from 1967 ...
won 48.4 percent of the county's vote. In 2020, 74 percent of the county voted for
Joe Biden and 24 percent voted for
Donald Trump
Donald John Trump (born June 14, 1946) is an American politician, media personality, and businessman who served as the 45th president of the United States from 2017 to 2021.
Trump graduated from the Wharton School of the University of Pe ...
.
In 1936, with
Franklin D. Roosevelt
Franklin Delano Roosevelt (; ; January 30, 1882April 12, 1945), often referred to by his initials FDR, was an American politician and attorney who served as the 32nd president of the United States from 1933 until his death in 1945. As the ...
receiving 1,253,164 votes in the county, Cook County became the first county in American history where a candidate received one million votes.
The
Cook County Democratic Party
The Cook County Democratic Party is a political party which represents voters in 50 wards in the city of Chicago and 30 suburban townships of Cook County. The organization has dominated Chicago politics (and consequently, Illinois politics) si ...
represents Democratic voters in 50
wards in the city of Chicago and 30 suburban
townships
A township is a kind of human settlement or administrative subdivision, with its meaning varying in different countries.
Although the term is occasionally associated with an urban area, that tends to be an exception to the rule. In Australia, Ca ...
of Cook County. The organization has dominated County,
city
A city is a human settlement of notable size.Goodall, B. (1987) ''The Penguin Dictionary of Human Geography''. London: Penguin.Kuper, A. and Kuper, J., eds (1996) ''The Social Science Encyclopedia''. 2nd edition. London: Routledge. It can be def ...
, and
state
State may refer to:
Arts, entertainment, and media Literature
* ''State Magazine'', a monthly magazine published by the U.S. Department of State
* ''The State'' (newspaper), a daily newspaper in Columbia, South Carolina, United States
* ''Our S ...
politics since the 1930s. The last Republican mayor of Chicago was
William Hale "Big Bill" Thompson, who left office in 1931 with a record of corruption. The most successful Republican candidate for mayor since then was
Bernard Epton
Bernard Edward Epton (August 25, 1921 – December 13, 1987) was an American politician who served in the Illinois House of Representatives from 1969 to 1983. He is most remembered for his candidacy as the Republican nominee in the close and c ...
, who in 1983 came within 3.3 percentage points of defeating Democrat
Harold Washington
Harold Lee Washington (April 15, 1922 – November 25, 1987) was an American lawyer and politician who was the 51st Mayor of Chicago. Washington became the first African American to be elected as the city's mayor in April 1983. He served as ma ...
. The county's
Republican Party organization is the
Cook County Republican Party
The Cook County Republican Party is a political party which represents voters in 50 wards in the city of Chicago and 30 suburban townships of Cook County. Cook County is the second-most populous county in the United States.
Organization and lead ...
.
The last Republican governor to carry the county was
Jim Edgar
James Edgar (born July 22, 1946) is an American politician who was the 38th governor of Illinois from 1991 to 1999. Previously he served as a member of the Illinois House of Representatives from 1976 to 1979 and as Illinois Secretary of State ...
in his
1994 landslide. The last Republican senator to do so was
Charles H. Percy
Charles Harting Percy (September 27, 1919 – September 17, 2011) was an American businessman and politician. He was president of the Bell & Howell Corporation from 1949 to 1964, and served as a Republican U.S. senator from Illinois from 1967 ...
in
1978
Events January
* January 1 – Air India Flight 855, a Boeing 747 passenger jet, crashes off the coast of Bombay, killing 213.
* January 5 – Bülent Ecevit, of Republican People's Party, CHP, forms the new government of Turkey (42nd go ...
.
Secession movements
To establish more localized government control and policies which reflect the often different values and needs of large suburban sections of the sprawling county,
secession
Secession is the withdrawal of a group from a larger entity, especially a political entity, but also from any organization, union or military alliance. Some of the most famous and significant secessions have been: the former Soviet republics le ...
movements have been made over the years which called for certain townships or municipalities to form their own independent counties.
In the late 1970s, a movement started which proposed a separation of six northwest suburban townships, Cook County's
panhandle (
Barrington,
Hanover
Hanover (; german: Hannover ; nds, Hannober) is the capital and largest city of the German state of Lower Saxony. Its 535,932 (2021) inhabitants make it the 13th-largest city in Germany as well as the fourth-largest city in Northern Germany ...
,
Palatine
A palatine or palatinus (in Latin; plural ''palatini''; cf. derivative spellings below) is a high-level official attached to imperial or royal courts in Europe since Roman times. ,
Wheeling,
Schaumburg
Schaumburg is a district (''Landkreis'') of Lower Saxony, Germany. It is bounded by (clockwise from the north) the districts of Nienburg, Hanover and Hamelin-Pyrmont, and the state of North Rhine-Westphalia (districts of Lippe and Minden-Lübbe ...
, and
Elk Grove) from Cook to form
Lincoln
Lincoln most commonly refers to:
* Abraham Lincoln (1809–1865), the sixteenth president of the United States
* Lincoln, England, cathedral city and county town of Lincolnshire, England
* Lincoln, Nebraska, the capital of Nebraska, U.S.
* Lincol ...
County, in honor of the former U.S. president and Illinois resident. It is likely that
Arlington Heights would have been the county seat. This northwest suburban region of Cook was at the time moderately
conservative
Conservatism is a cultural, social, and political philosophy that seeks to promote and to preserve traditional institutions, practices, and values. The central tenets of conservatism may vary in relation to the culture and civilization i ...
and has a population over 500,000. Local legislators, led by State Senator Dave Regnar, went so far as to propose it as official legislation in the
Illinois House. The legislation died, however, before coming to a vote.
In 2004,
Blue Island
Blue Island is a city in Cook County, Illinois, located approximately south of Chicago's Loop. Blue Island is adjacent to the city of Chicago and shares its northern boundary with that city's Morgan Park neighborhood. The population was 22,558 ...
Mayor Donald E. Peloquin organized a coalition of fifty-five south and southwest suburban municipalities to form a new county, also proposing the name ''Lincoln County''. The county would include everything south of
Burbank, stretching as far west as
Orland Park
Orland Park is a village in Cook County, Illinois, United States, with a small portion in Will County. The village is a suburb of Chicago. Per the 2020 census, Orland Park had a population of 58,703.
Located 25 miles (40 km) southwest of Chicago ...
, as far east as
Calumet City
Calumet City ( ) is a city in Cook County, Illinois, United States. The population was 36,033 at the 2020 census, a decline of 2.7% from 37,042 in 2010. The ZIP code is 60409.
Etymology
The word ''Calumet'' is the Miꞌkmaq and French word for a ...
, and as far south as
Matteson Matteson may refer to:
Places
* Matteson, Illinois
* Matteson, Wisconsin
Matteson is a town in Waupaca County, Wisconsin, United States. The population was 956 at the 2000 census. The former unincorporated community of Hunting was located pa ...
, covering an expansive area with a population of over one million residents. Peloquin argued that the south suburbs are often shunned by the city (although Chicago is not bound or required to do anything for other municipalities) and he blamed the Chicago-centric policies of Cook County for failing to jumpstart the somewhat-depressed south suburban local economy. Pending sufficient interest from local communities, Peloquin planned a petition drive to place a question regarding the secession on the general election ballot, but the idea was not met with success.
In arguing against the Lincon County proposal, others noted several of the cities involved had power structures, law enforcement, or ''de facto'' "mayors for life" often accused in the press, or civilly or criminally charged with,
political corruption
Political corruption is the use of powers by government officials or their network contacts for illegitimate private gain.
Forms of corruption vary, but can include bribery, lobbying, extortion, cronyism, nepotism, parochialism, patronage, in ...
,
cronyism
Cronyism is the spoils system practice of partiality in awarding jobs and other advantages to friends or trusted colleagues, especially in politics and between politicians and supportive organizations. For example, cronyism occurs when appointin ...
, and
nepotism
Nepotism is an advantage, privilege, or position that is granted to relatives and friends in an occupation or field. These fields may include but are not limited to, business, politics, academia, entertainment, sports, fitness, religion, an ...
, and themselves being the main factor in their depressed economies rather than anyone in Cook County government. The opposition decried that their true reason for joining the secession effort was to start with a 'clean slate' with a new county government by design less willing to enforce responsibility against their abuses of power.
Talk of secession from Cook County amongst some outlying communities again heated up in mid-2008 in response to a highly controversial 1% sales tax hike which has pushed the tax rates across the county communities up amongst the highest in the nation. Some border towns in particular had been outraged, as people can take their business across the county border (paying, for instance, 7% in Lake County instead of Palatine's 9.5%). The secession issue eventually died down from the nominal tax increase.
In 2011, two downstate Republican state representatives,
Bill Mitchell of the 87th district and
Adam Brown of the 101st district, proposed statehood for Cook County. Mitchell said that Chicago is "dictating its views" to the rest of the state and Brown added that Chicago "overshadows" the rest of Illinois.
Infrastructure
Canals
Construction of the
Erie Canal
The Erie Canal is a historic canal in upstate New York that runs east-west between the Hudson River and Lake Erie. Completed in 1825, the canal was the first navigable waterway connecting the Atlantic Ocean to the Great Lakes, vastly reducing t ...
in New York State made a connection from the Atlantic Ocean to the Great Lakes in 1821. As the Midwest farms proved productive, with much grain to sell to other parts of the US, Chicago and Cook County saw the benefit of a canal to improve the link from the Great Lakes to the Mississippi River. The
Illinois and Michigan Canal was completed in 1848, extending from the Bridgeport neighborhood in Chicago on the Chicago River, to the
Illinois River
The Illinois River ( mia, Inoka Siipiiwi) is a principal tributary of the Mississippi River and is approximately long. Located in the U.S. state of Illinois, it has a drainage basin of . The Illinois River begins at the confluence of the D ...
at the cities of LaSalle-Peru. This canal spurred the growth of Chicago and the areas around it, as water travel was the primary way to ship grain or other commodities in that part of the 19th century. The Illinois and Michigan Canal ceased major operation in 1933. Portions are now designated as a National Historic Corridor. The two canals and the Great Lakes cemented trade ties between the Midwest and the Northeast, encouraging farmers to grow more than they needed to feed themselves in Illinois, with a large market for grain now open to them. Towns in Cook County along the Canal grew. From a national perspective, the trade ties made the South region of the US less important to the Northeast as a trade partner.
The
Chicago Sanitary and Ship Canal, completed in 1900, largely replaced the functions of the Illinois and Michigan Canal. This canal resulted in the reversal of the direction of flow of the main stem and the South branch of the Chicago River; they used to empty into Lake Michigan and now those river sections flow toward the
Des Plaines River
The Des Plaines River () is a river that flows southward for U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map , accessed May 13, 2011 through southern Wisconsin and northern Illinois''American Her ...
. The Sanitary and Ship Canal was built to serve many aims, including ending using Lake Michigan as a sewer, sending waste water through treatment plants and sending it away from Lake Michigan. It is also a waterway for movement of ships.
Railway network
The next major technology for transportation was railroads. Chicago and the towns along the canal and rivers understood the value of being a hub of a major network. Rail lines spurred out from Chicago by the 1850s, with major growth in the rail network for freight and passenger transportation coming after the Civil War, when the transcontinental railroads were completed, coast to coast across the US, stopping in Chicago, the heart of Cook County.
Major highways
Following on the well-established position of Chicago as a transportation hub, the Interstate highway network maintained Chicago as a hub of that network, as well as serving the travel needs within the region.
*
*
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*
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*
*
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*
*
*
Illinois Route 1
Illinois Route 1 (IL 1) is a state highway in the U.S. state of Illinois. Running parallel to the Indiana border, the highway starts at the free ferry crossing to Kentucky at Cave-in-Rock on the Ohio River and runs north to the south sid ...
*
Illinois Route 7
Illinois Route 7 (IL 7, Illinois 7) is a northeast–southwest state road in northeastern Illinois. Currently, IL 7 runs from U.S. Route 6 (US 6) at Rockdale north through Joliet, and Crest Hill into Lockport, and then east to Orland Park ...
*
Illinois Route 19
Illinois Route 19 (abbreviated IL-19, or simply Illinois 19) is a major east–west arterial road in northeastern Illinois, United States. It runs from Illinois Route 25 (Liberty St.) in Elgin, to Lake Shore Drive ( U.S. Route 41) on the nor ...
*
Illinois Route 21
Illinois Route 21 (IL 21) is an arterial north–south state highway in northeastern Illinois. It runs from Illinois Route 43 (Harlem Avenue) in Niles to U.S. Route 41 (Skokie Highway) north of Gurnee. Illinois 21 is 28.13 miles (45.27  ...
*
Illinois Route 25
Illinois Route 25 (IL 25) is a state route in northeast Illinois. It runs north from U.S. Route 34 in Oswego to Illinois Route 62 (Algonquin Road) in Algonquin. Illinois 25 is in length.
Route description
Illinois Route 25 was opened in Aug ...
*
Illinois Route 38
Illinois Route 38 is an west–east state highway that runs across northern Illinois. It runs from U.S. Route 52 (US 52) in downtown Dixon to US 12/ US 20/ US 45 (Mannheim Road) in Westchester. It runs concurrently with ...
*
Illinois Route 43
Illinois Route 43 (IL 43) is a major north–south state highway in the U.S. state of Illinois. It runs from U.S. Route 30 (US 30) in Frankfort north to the large intersection of IL 120 (Belvidere Road) and US 41 (Skokie Highway) in ...
*
Illinois Route 50
Illinois Route 50 (IL 50) is a north–south state road in northeastern Illinois. It runs from the junction with U.S. Route 45 (US 45) and U.S. Route 52 (US 52) in West Kankakee north to US 41 in Skokie. In Chicago and the sub ...
*
Illinois Route 53
Illinois Route 53 (IL 53) is an arterial north–south state highway in northeast Illinois. IL 53 runs from Main Street west of historic U.S. Route 66 (US 66) in Gardner to IL 83 in Long Grove, a distance of . It mainly ...
*
Illinois Route 56
Illinois Route 56 (IL 56) is a east–west state highway in northern and northeastern Illinois. It runs from the interchange of Illinois Route 47 at U.S. Route 30 (US 30) in Sugar Grove east to US 12/US 20/US 45 (Mannheim Road) by Bellwoo ...
*
Illinois Route 58
Illinois Route 58 (IL 58, Illinois 58), also known as Golf Road for most of its route, is a state highway in northeast Illinois. It runs from Illinois Route 25 (Liberty Street) in Elgin east to U.S. Route 41 (Skokie Boulevard) in Skokie. This ...
*
Illinois Route 59
Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Rockfo ...
*
Illinois Route 62
Illinois Route 62 (IL 62) is a east–west state road in northeast Illinois. It runs from western Algonquin at IL 31 (Western Algonquin Bypass) to the intersection with IL 83 (Elmhurst Road) by industrial Mount Prospect.
Route ...
*
Illinois Route 64
Illinois Route 64 (IL 64, Illinois 64) is an east–west state highway in Northern Illinois. Its western terminus is at the Iowa state line, connecting with U.S. Route 52 (US 52) and Iowa Highway 64 via the Dale Gardner Veterans ...
*
Illinois Route 68
Illinois Route 68 (IL 68) is a east–west state highway in the northeastern part of the U.S. state of Illinois. It travels east from IL 72 (Higgins Road) in the Dundee area to the concurrency of Interstate 94 (I-94)/U.S. Route ...
*
Illinois Route 72
Illinois Route 72 is an east–west state road in northern Illinois. It runs from the intersection with Illinois Route 73 north of Lanark east to Illinois Route 43 (Harlem Avenue) in Chicago. This is a distance of .
Route description
Ill ...
*
Illinois Route 83
Illinois Route 83 (IL 83) is a major north–south state highway in northeast Illinois. It stretches from U.S. Route 30 (US 30, Lincoln Highway) by Lynwood and Dyer, Indiana, north to the Wisconsin border by Antioch at Wisconsin High ...
*
Illinois Route 110
110 may refer to:
*110 (number), natural number
*AD 110, a year
*110 BC, a year
*110 film, a cartridge-based film format used in still photography
*110 (MBTA bus), Massachusetts Bay Transportation Authority bus route
*110 (song), 2019 song by Capi ...
*
Illinois Route 171
Illinois Route 171 (IL 171) is a north–south state highway in northeastern Illinois. It runs from U.S. Route 6 (US 6) in Joliet north to Illinois Route 72 at the Chicago– Park Ridge border. The section of IL 171 on Archer Ave ...
*
Illinois Route 390
Illinois Route 390 (IL 390), previously known as the Elgin–O'Hare Expressway, now known as the Elgin–O'Hare Tollway, is a electronic toll highway in northeastern Illinois. IL 390 currently connects U.S. Route 20 (US&nb ...
*
Illinois Route 394
Illinois Route 394 (IL 394), also known as the Calumet Expressway, is a four-lane state highway that travels north from a junction with IL 1 south of Crete to an interchange in South Holland with Interstate 294/Interstate 94/Interstate 80 ...
Airports
When the age of air travel began in the 20th century, Midway Airport was built on one square mile of land and served as the major Chicago area airport from 1927 to 1955.
Midway International Airport
Chicago Midway International Airport , typically referred to as Midway Airport, Chicago Midway, or simply Midway, is a major commercial airport on the Southwest side of Chicago, Illinois, located approximately 12 miles (19 km) from the Lo ...
has been enlarged and continues to operate as of 2020. As air travel became more important for passenger travel, and then for select freight commodities,
O'Hare International Airport
Chicago O'Hare International Airport , sometimes referred to as, Chicago O'Hare, or simply O'Hare, is the main international airport serving Chicago, Illinois, located on the city's Northwest Side, approximately northwest of the Chicago Loop, ...
was built adjacent to a military airfield in the northwest part of Cook County. The City of Chicago annexed the land for the airport, so that the city controls both airports serving a large area. During the second half of the 20th century, it was the world's busiest airport. The approach of Cook County and Chicago to air travel has been the same as the approach to canal, railroad and highway transportation, to serve as a major national hub.
There has been a long running plan for a third major airport to serve the south side of the city and the southern and southwestern suburbs, the
Proposed Chicago south suburban airport
The proposed Chicago south suburban airport (also referred to as the Peotone airport) is a proposed airport that would be located in Peotone, Illinois, United States, approximately south of Chicago. Serving in addition to the two international co ...
intended for Peotone, Illinois. The state of Illinois has been addressing this topic since 1986. Some land has been acquired, but there is not a functioning airport there, as of August 2020.
Communities
Cities
*
Berwyn
*
Blue Island
Blue Island is a city in Cook County, Illinois, located approximately south of Chicago's Loop. Blue Island is adjacent to the city of Chicago and shares its northern boundary with that city's Morgan Park neighborhood. The population was 22,558 ...
*
Burbank
*
Calumet City
Calumet City ( ) is a city in Cook County, Illinois, United States. The population was 36,033 at the 2020 census, a decline of 2.7% from 37,042 in 2010. The ZIP code is 60409.
Etymology
The word ''Calumet'' is the Miꞌkmaq and French word for a ...
*
Chicago
(''City in a Garden''); I Will
, image_map =
, map_caption = Interactive Map of Chicago
, coordinates =
, coordinates_footnotes =
, subdivision_type = List of sovereign states, Count ...
(county seat and largest municipality)
*
Chicago Heights
Chicago Heights is a city in Cook County, Illinois, United States. The population was 27,480 at the 2020 census. In earlier years, Chicago Heights was nicknamed "The Crossroads of the Nation". Currently, it is nicknamed "The Heights".
Geograp ...
*
Country Club Hills
*
Countryside
In general, a rural area or a countryside is a geographic area that is located outside towns and cities
A city is a human settlement of notable size.Goodall, B. (1987) ''The Penguin Dictionary of Human Geography''. London: Penguin.Kuper, ...
*
Des Plaines
Des Plaines is a city in Cook County, Illinois, United States. Per the 2020 census, the population was 60,675. The city is a suburb of Chicago and is located just north of O'Hare International Airport. It is situated on and is named after the ...
*
Elgin (part)
*
Elmhurst (part)
*
Evanston
*
Harvey
Harvey, Harveys or Harvey's may refer to:
Arts, entertainment, and media
* ''Harvey'' (play), a 1944 play by Mary Chase about a man befriended by an invisible anthropomorphic rabbit
* Harvey Awards ("Harveys"), one of the most important awards ...
*
Hickory Hills
*
Hometown
Hometown, HomeTown, or Home Town may refer to:
*A hometown, the town where someone lives or the town that they come from, typically their place of birth.
*In developing nations particularly: native place, village of origin in newly urbanized soci ...
*
Markham Markham may refer to:
It may also refer to brand of of clothing which originates from South Africa which saw it's establishment in 1873.
Biology
* Markham's storm-petrel (''Oceanodroma markhami''), a seabird species found in Chile and Colombia
* ...
*
Northlake
*
Oak Forest
*
Orland Park
Orland Park is a village in Cook County, Illinois, United States, with a small portion in Will County. The village is a suburb of Chicago. Per the 2020 census, Orland Park had a population of 58,703.
Located 25 miles (40 km) southwest of Chicago ...
*
Palos Heights
*
Palos Hills
*
Palos Park
Palos Park is a village in southwestern Cook County, Illinois, United States. Per the 2020 census, the population was 4,899.
Geography
Palos Park is located at (41.665682, -87.836633).
According to the 2021 census gazetteer files, Palos Park ...
*
Park Ridge
*
Prospect Heights
*
Rolling Meadows
Towns
*
Cicero
Marcus Tullius Cicero ( ; ; 3 January 106 BC – 7 December 43 BC) was a Roman statesman, lawyer, scholar, philosopher, and academic skeptic, who tried to uphold optimate principles during the political crises that led to the estab ...
Villages
*
Alsip
*
Arlington Heights
*
Barrington (partly in
Lake County)
*
Barrington Hills (mostly)
*
Bartlett (mostly in
DuPage County
DuPage County ( ) is a county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2020 census, the population was 932,877, making it Illinois' second-most populous county. Its county seat ...
)
*
Bedford Park
*
Bellwood
*
Bensenville (mostly in
DuPage County
DuPage County ( ) is a county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2020 census, the population was 932,877, making it Illinois' second-most populous county. Its county seat ...
)
*
Berkeley
Berkeley most often refers to:
*Berkeley, California, a city in the United States
**University of California, Berkeley, a public university in Berkeley, California
* George Berkeley (1685–1753), Anglo-Irish philosopher
Berkeley may also refer ...
*
Bridgeview
*
Broadview
*
Brookfield
*
Buffalo Grove
Buffalo Grove, officially the Village of Buffalo Grove, is a village in Lake and Cook County, Illinois. A suburb of Chicago, it lies about northwest of Downtown Chicago. As of the 2020 Census, Buffalo Grove has a population of 43,212. It tota ...
(mostly in
Lake County)
*
Burnham
*
Burr Ridge
Burr Ridge (formerly Harvester) is a village in Cook and DuPage counties in the U.S. state of Illinois. A suburb of Chicago, it is among the wealthiest towns in Illinois and is locally known for its large, elegant mansions and luxury lifestyles. ...
(mostly in
DuPage County
DuPage County ( ) is a county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2020 census, the population was 932,877, making it Illinois' second-most populous county. Its county seat ...
)
*
Calumet Park
Calumet Park is a 198-acre (79-hectare) park in Chicago, Illinois. It provides access to Lake Michigan from the East Side neighborhood on the city's Southeast Side. The park contains approximately 0.9 miles (1.5 km) of lake frontage from ...
*
Chicago Ridge
*
Crestwood
*
Deer Park (mostly in
Lake County)
*
Deerfield (mostly in
Lake County)
*
Dixmoor
*
Dolton
*
East Dundee (mostly in
Kane County)
*
East Hazel Crest
*
Elk Grove Village
Elk Grove Village is a village in Cook and DuPage counties in the U.S. state of Illinois. Per the 2020 census, the population was 32,812. Located northwest of Chicago along the Golden Corridor, the Village of Elk Grove Village was incorpora ...
(partly in
DuPage County
DuPage County ( ) is a county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2020 census, the population was 932,877, making it Illinois' second-most populous county. Its county seat ...
)
*
Elmwood Park
*
Evergreen Park
*
Flossmoor
Flossmoor () is a village in Cook County, Illinois, United States. The population was 9,704 at the 2020 census. Flossmoor is approximately 25 miles south of the Chicago Loop.
Geography
Flossmoor is located at (41.541684, -87.684970).
According ...
*
Ford Heights
*
Forest Park
A forest park is a park whose main theme is its forest of trees. Forest parks are found both in the mountains and in the urban environment.
Examples Chile
* Forest Park, Santiago
China
*Gongqing Forest Park, Shanghai
* Mufushan National Fores ...
*
Forest View
*
Frankfort (mostly in Will County)
*
Franklin Park
*
Glencoe
*
Glenview
*
Glenwood
*
Golf
Golf is a club-and-ball sport in which players use various clubs to hit balls into a series of holes on a course in as few strokes as possible.
Golf, unlike most ball games, cannot and does not use a standardized playing area, and coping wi ...
*
Hanover Park (mostly in DuPage County)
*
Harwood Heights
*
Hazel Crest
Hazel Crest is a village in Cook County, Illinois, United States. The population was 13,382 at the 2020 census.
History
Hazel Crest was first settled in 1870 in a farming community known as South Harvey. An enterprising newspaper editor named ...
*
Hillside
*
Hinsdale (mostly in
DuPage County
DuPage County ( ) is a county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2020 census, the population was 932,877, making it Illinois' second-most populous county. Its county seat ...
)
*
Hodgkins
*
Hoffman Estates
Hoffman Estates is a village in Illinois, United States. The village is located primarily in Cook County, with a small section in Kane County. It is a suburb of Chicago. Per the 2020 census, the population was 52,530.
The village now serves ...
(partly in
Kane County)
*
Homewood
*
Indian Head Park
*
Inverness
Inverness (; from the gd, Inbhir Nis , meaning "Mouth of the River Ness"; sco, Innerness) is a city in the Scottish Highlands. It is the administrative centre for The Highland Council and is regarded as the capital of the Highlands. Histori ...
*
Justice
Justice, in its broadest sense, is the principle that people receive that which they deserve, with the interpretation of what then constitutes "deserving" being impacted upon by numerous fields, with many differing viewpoints and perspective ...
*
Kenilworth
Kenilworth ( ) is a market town and Civil parishes in England, civil parish in the Warwick (district), Warwick District in Warwickshire, England, south-west of Coventry, north of Warwick and north-west of London. It lies on Finham Brook, a ...
*
La Grange
*
La Grange Park
La Grange Park is a village in Cook County, Illinois, United States. Per the 2020 census, the population was 13,475.
Geography
La Grange Park is located at (41.829831, -87.869233).
According to the 2021 census gazetteer files, La Grange Park ha ...
*
Lansing
Lansing () is the capital of the U.S. state of Michigan. It is mostly in Ingham County, although portions of the city extend west into Eaton County and north into Clinton County. The 2020 census placed the city's population at 112,644, makin ...
*
Lemont (partly in
DuPage County
DuPage County ( ) is a county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2020 census, the population was 932,877, making it Illinois' second-most populous county. Its county seat ...
and
Will County
Will may refer to:
Common meanings
* Will and testament, instructions for the disposition of one's property after death
* Will (philosophy), or willpower
* Will (sociology)
* Will, volition (psychology)
* Will, a modal verb - see Shall and will ...
)
*
Lincolnwood
*
Lynwood
*
Lyons
Lyon,, ; Occitan: ''Lion'', hist. ''Lionés'' also spelled in English as Lyons, is the third-largest city and second-largest metropolitan area of France. It is located at the confluence of the rivers Rhône and Saône, to the northwest of th ...
*
Matteson Matteson may refer to:
Places
* Matteson, Illinois
* Matteson, Wisconsin
Matteson is a town in Waupaca County, Wisconsin, United States. The population was 956 at the 2000 census. The former unincorporated community of Hunting was located pa ...
*
Maywood
*
McCook
*
Melrose Park
*
Merrionette Park
*
Midlothian
*
Morton Grove
Morton Grove is a village in Cook County, Illinois. Per the 2020 census, the population was 25,297.
The village is named after former United States Vice President Levi Parsons Morton, who helped finance the Chicago, Milwaukee and St. Paul Railr ...
*
Mount Prospect
*
Niles
*
Norridge
Norridge is a village in Cook County, Illinois, United States. The population was 15,251 at the 2020 census. The village and its neighbor to the east, Harwood Heights, together form an enclave within the city of Chicago (i.e. they are surrounded ...
*
North Riverside
*
Northbrook
*
Northfield Northfield may refer to:
Places United Kingdom
* Northfield, Aberdeen, Scotland
* Northfield, Edinburgh, Scotland
* Northfield, Birmingham, England
* Northfield (Kettering BC Ward), Northamptonshire, England
United States
* Northfield, Connec ...
*
Oak Brook (mostly in DuPage County)
*
Oak Forest
*
Oak Lawn
*
Oak Park
*
Olympia Fields
Olympia Fields is a village and a south suburb of Chicago in Cook County, Illinois, United States. The population was 4,718 as of the 2020 census. The municipality grew up around the prestigious Olympia Fields Country Club, originally established ...
*
Orland Hills
*
Orland Park
Orland Park is a village in Cook County, Illinois, United States, with a small portion in Will County. The village is a suburb of Chicago. Per the 2020 census, Orland Park had a population of 58,703.
Located 25 miles (40 km) southwest of Chicago ...
(partly in
Will County
Will may refer to:
Common meanings
* Will and testament, instructions for the disposition of one's property after death
* Will (philosophy), or willpower
* Will (sociology)
* Will, volition (psychology)
* Will, a modal verb - see Shall and will ...
)
*
Palatine
A palatine or palatinus (in Latin; plural ''palatini''; cf. derivative spellings below) is a high-level official attached to imperial or royal courts in Europe since Roman times.
*
Palos Park
Palos Park is a village in southwestern Cook County, Illinois, United States. Per the 2020 census, the population was 4,899.
Geography
Palos Park is located at (41.665682, -87.836633).
According to the 2021 census gazetteer files, Palos Park ...
*
Park Forest (partly in
Will County
Will may refer to:
Common meanings
* Will and testament, instructions for the disposition of one's property after death
* Will (philosophy), or willpower
* Will (sociology)
* Will, volition (psychology)
* Will, a modal verb - see Shall and will ...
)
*
Phoenix
Phoenix most often refers to:
* Phoenix (mythology), a legendary bird from ancient Greek folklore
* Phoenix, Arizona, a city in the United States
Phoenix may also refer to:
Mythology
Greek mythological figures
* Phoenix (son of Amyntor), a ...
*
Posen
*
Richton Park
Richton Park is a village and a southern suburb of Chicago in Cook County, Illinois, United States. The population was 12,775 at the 2020 census. The community was named after a Richton in Vermont, the native home of a first settler.
Geography
Ri ...
*
River Forest
*
River Grove
*
Riverdale
*
Riverside
Riverside may refer to:
Places Australia
* Riverside, Tasmania, a suburb of Launceston, Tasmania
Canada
* Riverside (electoral district), in the Yukon
* Riverside, Calgary, a neighbourhood in Alberta
* Riverside, Manitoba, a former rural m ...
*
Robbins
*
Roselle (mostly in
DuPage County
DuPage County ( ) is a county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2020 census, the population was 932,877, making it Illinois' second-most populous county. Its county seat ...
)
*
Rosemont
*
Sauk Village (partly in
Will County
Will may refer to:
Common meanings
* Will and testament, instructions for the disposition of one's property after death
* Will (philosophy), or willpower
* Will (sociology)
* Will, volition (psychology)
* Will, a modal verb - see Shall and will ...
)
*
Schaumburg
Schaumburg is a district (''Landkreis'') of Lower Saxony, Germany. It is bounded by (clockwise from the north) the districts of Nienburg, Hanover and Hamelin-Pyrmont, and the state of North Rhine-Westphalia (districts of Lippe and Minden-Lübbe ...
(partly in
DuPage County
DuPage County ( ) is a county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2020 census, the population was 932,877, making it Illinois' second-most populous county. Its county seat ...
)
*
Schiller Park
*
Skokie
*
South Barrington
*
South Chicago Heights
*
South Holland
South Holland ( nl, Zuid-Holland ) is a province of the Netherlands with a population of over 3.7 million as of October 2021 and a population density of about , making it the country's most populous province and one of the world's most densely ...
*
Steger (partly in
Will County
Will may refer to:
Common meanings
* Will and testament, instructions for the disposition of one's property after death
* Will (philosophy), or willpower
* Will (sociology)
* Will, volition (psychology)
* Will, a modal verb - see Shall and will ...
)
*
Stickney
*
Stone Park
*
Streamwood
*
Summit
A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. The topography, topographic terms acme, apex, peak (mountain peak), and zenith are synonymous.
The term (mountain top) is generally used ...
*
Thornton
*
Tinley Park (partly in
Will County
Will may refer to:
Common meanings
* Will and testament, instructions for the disposition of one's property after death
* Will (philosophy), or willpower
* Will (sociology)
* Will, volition (psychology)
* Will, a modal verb - see Shall and will ...
)
*
University Park (mostly in
Will County
Will may refer to:
Common meanings
* Will and testament, instructions for the disposition of one's property after death
* Will (philosophy), or willpower
* Will (sociology)
* Will, volition (psychology)
* Will, a modal verb - see Shall and will ...
)
*
Westchester
*
Western Springs
*
Wheeling
*
Willow Springs (small portion in DuPage County)
*
Wilmette
Wilmette is a village in New Trier Township, Cook County, Illinois, United States. Bordering Lake Michigan and Evanston, Illinois, it is located north of Chicago's downtown district. Wilmette had a population of 27,087 at the 2010 census. The ...
*
Winnetka
*
Woodridge (mostly in
DuPage County
DuPage County ( ) is a county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2020 census, the population was 932,877, making it Illinois' second-most populous county. Its county seat ...
and
Will County
Will may refer to:
Common meanings
* Will and testament, instructions for the disposition of one's property after death
* Will (philosophy), or willpower
* Will (sociology)
* Will, volition (psychology)
* Will, a modal verb - see Shall and will ...
*
Worth
Unincorporated communities
*
Central Stickney
*
Hines
*
Indian Hill
*
La Grange Highlands
*
Nottingham Park
*
Orchard Place
*
Sag Bridge
*
Sutton
Sutton (''south settlement'' or ''south town'' in Old English) may refer to:
Places
United Kingdom
England
In alphabetical order by county:
* Sutton, Bedfordshire
* Sutton, Berkshire, a List of United Kingdom locations: Stu-Sz#Su, location
* S ...
*
Techny
Techny is a neighborhood of Northbrook, Illinois, United States. Once a separate community, it was annexed by Northbrook in 1989. The North American headquarters of the Divine Word Missionaries has been located in Techny since 1896. The area's na ...
Historic Site
*
Fort Dearborn
Fort Dearborn was a United States fort built in 1803 beside the Chicago River, in what is now Chicago, Illinois. It was constructed by troops under Captain John Whistler and named in honor of Henry Dearborn, then United States Secretary of War. ...
Townships
The county is divided into 29
townships, in addition to the cities of Chicago and Evanston.
Image:Map of Cook County Illinois showing townships.png, Cook County townships (clickable), 400px, center
rect 321 449 394 522 Worth Township
rect 198 112 270 184 Wheeling Township
rect 393 518 488 594 Thornton Township
rect 319 374 355 400 Stickney Township
rect 320 418 357 452 Stickney Township
rect 113 181 183 246 Schaumburg Township
Schaumburg Township is one of 29 Civil township, townships in Cook County, Illinois, Cook County, Illinois, United States, USA. As of the 2010 United States Census, 2010 census, its population was 131,288. It is in the north west corner of Cook C ...
rect 295 357 320 382 Riverside Township
rect 300 309 319 334 River Forest Township
rect 325 591 397 664 Rich Township
rect 248 310 319 383 Proviso Township
rect 251 451 324 524 Palos Township
rect 128 111 200 183 Palatine Township
rect 253 521 326 594 Orland Township
rect 317 309 337 346 Oak Park Township
rect 299 256 330 276 Norwood Park Township
rect 267 113 340 185 Northfield Township
rect 317 183 377 239 Niles Township
rect 327 113 393 185 New Trier Township
rect 248 183 318 241 Maine Township
rect 249 380 322 465 Lyons Township
rect 248 258 318 312 Leyden Township
rect 182 464 254 526 Lemont Township
rect 41 181 115 247 Hanover Township
rect 361 178 403 222 Evanston
rect 182 182 249 243 Elk Grove Township
Elk Grove Township is one of 29 townships in Cook County, Illinois, USA. As of the 2010 census, its population was 92,905. Elk Grove Township formerly housed the United Airlines headquarters.
Geography
According to the United States Census B ...
rect 333 344 358 381 Cicero Township
rect 392 496 432 524 Calumet Township
rect 323 519 397 594 Bremen Township
rect 396 591 488 664 Bloom Township
rect 318 345 335 381 Berwyn Township
rect 58 111 129 182 Barrington Township
Current townships & Independent cities
The 29 townships and 2 independent cities of Cook County, with their populations as of the 2010 Census, are:
*
City of Chicago
(''City in a Garden''); I Will
, image_map =
, map_caption = Interactive Map of Chicago
, coordinates =
, coordinates_footnotes =
, subdivision_type = Country
, subdivision_name ...
- 2,695,598
*
City of Evanston - 74,486
*
Barrington Township – 15,636
*
Berwyn Township – 56,657
*
Bloom Township – 90,922
*
Bremen Township – 110,118
*
Calumet Township – 20,777
*
Cicero Township – 83,891
*
Elk Grove Township
Elk Grove Township is one of 29 townships in Cook County, Illinois, USA. As of the 2010 census, its population was 92,905. Elk Grove Township formerly housed the United Airlines headquarters.
Geography
According to the United States Census B ...
– 92,905
*
Hanover Township – 99,538
*
Lemont Township – 21,113
*
Leyden Township – 92,890
*
Lyons Township – 111,688
*
Maine Township – 135,772
*
New Trier Township – 55,424
*
Niles Township – 105,882
*
Northfield Township – 85,102
*
Norwood Park Township – 26,385
*
Oak Park Township – 51,878
*
Orland Township – 97,558
*
Palatine Township – 112,994
*
Palos Township – 54,615
*
Proviso Township – 151,704
*
Rich Township – 76,727
*
River Forest Township – 11,172
*
Riverside Township – 15,594
*
Schaumburg Township
Schaumburg Township is one of 29 Civil township, townships in Cook County, Illinois, Cook County, Illinois, United States, USA. As of the 2010 United States Census, 2010 census, its population was 131,288. It is in the north west corner of Cook C ...
– 131,288
*
Stickney Township – 40,772
*
Thornton Township – 169,326
*
Wheeling Township – 153,630
*
Worth Township – 152,633
Former townships
Chicago's eight former townships and annexed parts of others no longer have any governmental structure or responsibility since their annexations, but their names and boundaries are still used on property plats and by Cook County for tax assessment purposes. In 2014, Evanston Township was dissolved by voters and its functions were absorbed by the city of Evanston.
*
Evanston Township
*
Jefferson Township
*
Hyde Park Township
*
Lake Township
*
Lake View Township
*
North Township
*
Rogers Park Township
*
South Township
*
West Township
Adjacent counties
*
McHenry County, Illinois
McHenry County is a county located in the U.S. state of Illinois. According to the 2020 Census, it had a population of 310,229, making it the sixth-most populous county in Illinois. Its county seat is Woodstock. McHenry County is one of the f ...
– northwest
*
Lake County, Illinois
Lake County is situated in the northeastern corner of the U.S. state of Illinois, along the shores of Lake Michigan. As of the 2020 census, it has a population of 714,342, making it the third-most populous county in Illinois. Its county seat ...
– north
*
Berrien County, Michigan
Berrien County is a county on the south line of Michigan, at the southwestern corner of the state. As of the 2020 Census, the population was 154,316. The county seat is St. Joseph.
Berrien County is included in the Niles- Benton Harbor, MI Me ...
– east
*
Lake County, Indiana
Lake County is a county located in the U.S. state of Indiana. In 2020, its population was 498,700, making it Indiana's second-most populous county. The county seat is Crown Point. The county is part of Northwest Indiana and the Chicago metropo ...
– southeast
*
Will County, Illinois
Will County is a county in the northeastern part of the state of Illinois. According to the 2020 census, it had a population of 696,355, an increase of 2.8% from 677,560 in 2010, making it Illinois's fourth-most populous county. The county seat ...
– south
*
DuPage County, Illinois
DuPage County ( ) is a county in the U.S. state of Illinois, and one of the collar counties of the Chicago metropolitan area. As of the 2020 census, the population was 932,877, making it Illinois' second-most populous county. Its county seat is ...
– west
*
Kane County, Illinois
Kane County is a county in the U.S. state of Illinois. According to the 2010 census, it has a population of 515,269, making it the fifth-most populous county in Illinois. Its county seat is Geneva, and its largest city is Aurora. Kane County ...
– west
Education
Public school districts
Colleges and universities
*
Chicago State University
Chicago State University (CSU) is a predominantly black public university in Chicago, Illinois. Founded in 1867 as the Cook County Normal School, it was an innovative teachers college. Eventually the Chicago Public Schools assumed control of t ...
*
City Colleges of Chicago
*
Columbia College Chicago
Columbia College Chicago is a Private college, private art college in Chicago, Illinois. Founded in 1890, it has 5,928https://about.colum.edu/effectiveness/pdf/spring-2021-student-profile.pdf students pursuing degrees in more than 60 undergra ...
*
Depaul University
DePaul University is a private university, private, Catholic higher education, Catholic research university in Chicago, Illinois. Founded by the Congregation of the Mission, Vincentians in 1898, the university takes its name from the 17th-centu ...
*
Loyola University Chicago
Loyola University Chicago (Loyola or LUC) is a private Jesuit research university in Chicago, Illinois. Founded in 1870 by the Society of Jesus, Loyola is one of the largest Catholic
The Catholic Church, also known as the Roman Cathol ...
*
National Louis University
National Louis University (NLU) is a private university with its main campus in Chicago, Illinois. NLU enrolls undergraduate and graduate students in more than 60 programs across its four colleges. It has locations throughout the Chicago metropol ...
*
Northeastern Illinois University
Northeastern Illinois University (NEIU) is a public university in Chicago, Illinois. NEIU serves approximately 9,000 students in the region and is a Hispanic-serving institution. The main campus is located in the community area of North Park wi ...
*
Northwestern University
Northwestern University is a private research university in Evanston, Illinois. Founded in 1851, Northwestern is the oldest chartered university in Illinois and is ranked among the most prestigious academic institutions in the world.
Charte ...
*
University of Chicago
The University of Chicago (UChicago, Chicago, U of C, or UChi) is a private research university in Chicago, Illinois. Its main campus is located in Chicago's Hyde Park neighborhood. The University of Chicago is consistently ranked among the b ...
*
University of Illinois Chicago
The University of Illinois Chicago (UIC) is a public research university in Chicago, Illinois. Its campus is in the Near West Side community area, adjacent to the Chicago Loop. The second campus established under the University of Illinois sy ...
See also
*
Chicago metropolitan area
The Chicago metropolitan area, also colloquially referred to as Chicagoland, is a metropolitan area in the Midwestern United States. Encompassing 10,286 sq mi (28,120 km2), the metropolitan area includes the city of Chicago, its suburbs and hi ...
*
Cook County Forest Preserve District
The Forest Preserve District of Cook County is a governmental commission in Cook County, Illinois, that owns and manages a network of open spaces, containing forest, prairie, wetland, streams, and lakes, that are mostly set aside as natural areas ...
*
Metropolitan Water Reclamation District of Greater Chicago
The Metropolitan Water Reclamation District of Greater Chicago (MWRD), originally known as the Sanitary District of Chicago, is a special-purpose district chartered to operate in Cook County, Illinois since 1889. Although its name may imply other ...
*
References
External links
Cook County Government Website
{{authority control
Illinois counties
1831 establishments in Illinois
Populated places established in 1831
Cook County
Cook County is the most populous county in the U.S. state of Illinois and the second-most-populous county in the United States, after Los Angeles County, California. More than 40% of all residents of Illinois live within Cook County. As of 20 ...
Majority-minority counties in the United States