Will County is a
county
A county () is a geographic region of a country used for administrative or other purposesL. Brookes (ed.) '' Chambers Dictionary''. Edinburgh: Chambers Harrap Publishers Ltd, 2005. in some nations. The term is derived from the Old French denoti ...
in the northeastern part of the
state
State most commonly refers to:
* State (polity), a centralized political organization that regulates law and society within a territory
**Sovereign state, a sovereign polity in international law, commonly referred to as a country
**Nation state, a ...
of
Illinois
Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. It borders on Lake Michigan to its northeast, the Mississippi River to its west, and the Wabash River, Wabash and Ohio River, Ohio rivers to its ...
. 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
A county seat is an administrative center, seat of government, or capital city of a county or parish (administrative division), civil parish. The term is in use in five countries: Canada, China, Hungary, Romania, and the United States. An equiva ...
is
Joliet.
Will County is one of the five
collar counties of the Chicago–Naperville–Elgin, IL–IN–WI Metropolitan Statistical Area. The portion of Will County around Joliet uses area codes 815 and 779, while 630 and 331 are for far northern Will County and 708 is for central and eastern Will County.
History
Will County was formed on January 12, 1836, out of
Cook and
Iroquois Counties. It was named after
Conrad Will, a politician and businessman involved in salt production in southern Illinois. Will was a member of the first Illinois Constitutional Convention and a member of the Illinois legislature until his death in 1835. Besides its present area, the county originally included the part of
Kankakee County, Illinois, north of the
Kankakee River. It lost that area when Kankakee County was organized in 1852. Since then its boundaries have not changed.
36 locations in Will County are on the
National Register of Historic Places
The National Register of Historic Places (NRHP) is the Federal government of the United States, United States federal government's official United States National Register of Historic Places listings, list of sites, buildings, structures, Hist ...
.
File:Will County Illinois 1836.png, Will County from its 1836 creation to 1852
File:Will County Illinois 1853.png, Will County in 1853, reduced to its current borders by the creation of Kankakee County
Geography
According to the
U.S. Census Bureau, the county has an area of , of which is land and (1.5%) is water.
The
Kankakee River,
Du Page River and 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 H ...
run through the county and join on its western border. The
Illinois and Michigan Canal
The Illinois and Michigan Canal connected the Great Lakes to the Mississippi River and the Gulf of Mexico. In Illinois, it ran from the Chicago River in Bridgeport, Chicago to the Illinois River at LaSalle-Peru. The canal crossed the Chicago ...
and the
Chicago Sanitary and Ship Canal run through Will County.
A number of areas are preserved as parks (over total) under the
Forest Preserve District of Will County. The
Midewin National Tallgrass Prairie
The Midewin National Tallgrass Prairie (MNTP) is a tallgrass prairie reserve and is preserved as United States National Grassland operated by the United States Forest Service. The first national tallgrass prairie ever designated in the United St ...
is a
U.S. Forest Service park in the county on the grounds of the former
Joliet Arsenal. Other parks include
Channahon State Park and the
Des Plaines Fish and Wildlife Area.
Climate and weather
In recent years, average temperatures in the county seat of Joliet have ranged from a low of in January to a high of in July, although a record low of was recorded in January 1985 and a record high of was recorded in June 1988. Average monthly precipitation ranged from in January to in July.
Adjacent counties
*
Kane County (northwest)
*
DuPage County (north)
*
Cook County (northeast)
*
Lake County, Indiana
Lake County is a county (United States), county located in the U.S. state of Indiana. In 2020, its population was 498,700, making it Indiana's List of counties in Indiana, second-most populous county. The county seat is Crown Point, Indiana, C ...
(east)
*
Kankakee County (south)
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Grundy County (southwest)
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Kendall County (west)
Demographics
2010 census
As of the
2010 Census, there were 677,560 people, 225,256 households, and 174,062 families residing in the county.
The population density was . There were 237,501 housing units at an average density of .
The racial makeup of the county was 76.0% white, 11.2% black or African American, 4.6% Asian, 0.3% American Indian, 5.8% from other races, and 2.3% from two or more races. Those of Hispanic or Latino origin made up 15.6% of the population.
In terms of ancestry, 21.6% were
German, 18.6% were
Irish, 13.3% were
Polish, 11.1% were
Italian, 5.9% were
English, and 2.1% were
American.
Of the 225,256 households, 44.0% had children under 18 living with them, 61.9% were married couples living together, 10.9% had a female householder with no husband present, 22.7% were non-families, and 18.5% of all households were made up of individuals. The average household size was 2.97 and the average family size was 3.41. The median age was 35.4.
The median income for a household in the county was $75,906 and the median income for a family was $85,488. Males had a median income of $60,867 versus $40,643 for females. The per capita income was $29,811. About 5.0% of families and 6.6% of the population were below the
poverty line
The poverty threshold, poverty limit, poverty line, or breadline is the minimum level of income deemed adequate in a particular country. The poverty line is usually calculated by estimating the total cost of one year's worth of necessities for ...
, including 9.0% of those under 18 and 5.6% of those 65 or older.
Government
Will County is governed by a 22-member county board elected from 11 districts. Each district elects two members. The county executive, county clerk, coroner, auditor, treasurer, recorder of deeds, state's attorney, and
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, the , which is common ...
are all elected in a countywide vote. The current county executive is
Jennifer Bertino-Tarrant, who took office in 2020.
Will County government has been housed in a succession of courthouses, the first being erected in 1837.
The fourth courthouse was designed of reinforced concrete in the
Brutalist style by Otto Stark of
C.F. Murphy Associates and completed in 1969. Citing lack of space, inefficiency and high operating costs, the County Board chose to erect a new courthouse, which was designed by Wight & Co. and completed in 2020.
Considerable controversy surrounded the disposition of the 1969 courthouse, with
Landmarks Preservation Council of Illinois including the building on its “2022 Most Endangered Historic Places in Illinois”.
After a number of votes and appeals, demolition was approved and the destruction of the building began on December 4, 2023.
Politics
Like most of the
collar counties, Will County was once a Republican stronghold. It went Republican in all but three elections from 1892 to 1988. Since the 1990s, it has become a swing county. It voted for the national winner in every presidential election from 1980 to 2012, but Chicago-born
Hillary Clinton
Hillary Diane Rodham Clinton ( Rodham; born October 26, 1947) is an American politician, lawyer and diplomat. She was the 67th United States secretary of state in the administration of Barack Obama from 2009 to 2013, a U.S. senator represent ...
won it along with the rest of the "collar counties" aside from McHenry in 2016.
Education
*
Governors State University
Governors State University (Governors State, GSU, GovState, or GOVST) is a public university in University Park, Illinois, United States. The campus is located south of Chicago, Illinois. GovState was founded in 1969. It is a public universi ...
is a 6,000-student public university in
University Park.
*
Lewis University is a 5,200-student four-year private university in
Romeoville.
*
University of St. Francis is a 3,300-student four-year private university in
Joliet.
* The county is in Community College District 525 and is served by
Joliet Junior College in Joliet. Joliet Junior College was the first two-year higher education institution in the United States.
K-12 school districts
K-12 school districts, including any with any territory in Will County, no matter how slight, even if the schools and/or administrative headquarters are in other counties:
K-12:
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Beecher Community Unit School District 200U
*
Coal City Community Unit School District 1
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Crete-Monee Community Unit School District 201-U
*
Indian Prairie School District 204
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Manteno Community Unit School District 5
*
Naperville Community Unit District 203
*
Oswego Community Unit School District 308
*
Peotone Community Unit School District 207U
*
Plainfield School District 202
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Reed Custer Community Unit School District 255U
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Valley View Community Unit School District 365U
*
Wilmington Community Unit School District 209U
Secondary:
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Bloom Township High School District 206
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Joliet Township High School District 204
*
Lincoln Way Community High School District 210
*
Lockport Township High School District 205
*
Minooka Community High School District 111
Elementary:
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Chaney-Monge School District 88
*
Channahon School District 17
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Elwood Community Consolidated School District 203
*
Fairmont School District 89
*
Frankfort Community Consolidated School District 157C
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Homer Community Consolidated School District 33C
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Joliet Public School District 86
*
Laraway Community Consolidated School District 70C
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Lockport School District 91
*
Manhattan School District 114
*
Minooka Community Consolidated School District 201
*
Mokena School District 159
*
New Lenox School District 122
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Richland School District 88A
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Rockdale School District 84
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Steger School District 194;
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Summit Hill School District 161
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Taft School District 90
*
Troy Community Consolidated School District 30C
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Union School District 81
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Will County School District 92
Transportation
Will County is served by four U.S. interstate highways, four U.S. highways, and 12 Illinois highways.
Pace provides bus transit services within the county.
Rail
Four different
Metra
Metra is the primary commuter rail system in the Chicago metropolitan area serving the city of Chicago and its surrounding suburbs via the Union Pacific Railroad, BNSF Railway, and other railroads. The system operates 243 train station, stati ...
commuter rail lines (
Metra Electric Main Line,
Southwest Service,
Rock Island District and
Heritage Corridor
The Heritage Corridor (HC) is a Metra commuter rail line in Chicago, Illinois, and its southwestern suburbs, terminating in Joliet, Illinois. While Metra does not refer to its lines by colors, the Heritage Corridor appears on Metra timetables as ...
) connect Will County with the
Chicago Loop.
Amtrak
The National Railroad Passenger Corporation, Trade name, doing business as Amtrak (; ), is the national Passenger train, passenger railroad company of the United States. It operates intercity rail service in 46 of the 48 contiguous United Stat ...
serves the county at
Joliet Transportation Center. The
Lincoln Service operates between Chicago and St. Louis, while the
Texas Eagle provides service from Chicago south to
San Antonio
San Antonio ( ; Spanish for " Saint Anthony") is a city in the U.S. state of Texas and the most populous city in Greater San Antonio. San Antonio is the third-largest metropolitan area in Texas and the 24th-largest metropolitan area in the ...
and west to
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
.
Major highways
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Energy infrastructure
Pipelines
Will County is a major hub in the national
natural gas
Natural gas (also fossil gas, methane gas, and gas) is a naturally occurring compound of gaseous hydrocarbons, primarily methane (95%), small amounts of higher alkanes, and traces of carbon dioxide and nitrogen, hydrogen sulfide and helium ...
pipeline grid where pipelines from
Canada
Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
and the
Gulf of Mexico
The Gulf of Mexico () is an oceanic basin and a marginal sea of the Atlantic Ocean, mostly surrounded by the North American continent. It is bounded on the northeast, north, and northwest by the Gulf Coast of the United States; on the southw ...
meet and then fan out to serve the Midwest. The following major energy companies own pipeline that runs through Will County:
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Alliance Pipeline
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Enbridge
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Integrys Energy Group
**
Peoples Gas
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Kinder Morgan Interstate Gas Transmission
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TransCanada
**
ANR Pipeline - Fully owned & operated
**
Northern Border Pipeline - Partially owned & fully operated
*
Vector Pipeline
Joliet Refinery
ExxonMobil
Exxon Mobil Corporation ( ) is an American multinational List of oil exploration and production companies, oil and gas corporation headquartered in Spring, Texas, a suburb of Houston. Founded as the Successors of Standard Oil, largest direct s ...
owns and operates the
Joliet Refinery along 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 H ...
just east of
I-55. According to ExxonMobil, the refinery employs about 600 people and was constructed in 1972.
Municipalities
Cities
*
Aurora
An aurora ( aurorae or auroras),
also commonly known as the northern lights (aurora borealis) or southern lights (aurora australis), is a natural light display in Earth's sky, predominantly observed in high-latitude regions (around the Arc ...
(mostly in DuPage, Kane, and Kendall counties)
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Braidwood
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Crest Hill
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Joliet (partly in Kendall County)
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Lockport
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Naperville (mostly in DuPage County)
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Wilmington
Villages
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Beecher
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Bolingbrook (partly in DuPage County)
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Channahon (partly in Grundy County)
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Coal City (mostly in Grundy County)
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Crete
Crete ( ; , Modern Greek, Modern: , Ancient Greek, Ancient: ) is the largest and most populous of the Greek islands, the List of islands by area, 88th largest island in the world and the List of islands in the Mediterranean#By area, fifth la ...
*
Diamond
Diamond is a Allotropes of carbon, solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond is tasteless, odourless, strong, brittle solid, colourless in pure form, a poor conductor of e ...
(mostly in Grundy County)
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Elwood
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Frankfort (partly in Cook County)
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Godley
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Homer Glen (partly in Cook County)
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Manhattan
Manhattan ( ) is the most densely populated and geographically smallest of the Boroughs of New York City, five boroughs of New York City. Coextensive with New York County, Manhattan is the County statistics of the United States#Smallest, larg ...
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Minooka (mostly in Grundy & Kendall counties)
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Mokena
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Monee
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New Lenox
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Orland Park (mostly in Cook County)
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Oswego (mostly in Kendall County)
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Park Forest (mostly in Cook County)
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Peotone
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Plainfield (partly in Kendall County)
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Rockdale
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Romeoville
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Shorewood
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Steger (partly in Cook County)
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Symerton
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Tinley Park (mostly in Cook County)
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University Park (partly in Cook County)
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Woodridge (mostly in DuPage County)
Census-designated places
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Andres
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Arbury Hills
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Ballou
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Bonnie Brae
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Crystal Lawns
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Custer Park
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Eagle Lake
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Fairmont
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Frankfort Square
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Goodenow
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Ingalls Park
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Lakewood Shores
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Lockport Heights
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Lorenzo
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Marley
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Plum Valley
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Polk
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Preston Heights
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Rest Haven
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Ridgewood
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Ritchie
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Sunnyland
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Willow Brook Estates
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Wilton
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Wilton Center
Fort
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Beggs
Townships
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Channahon
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Crete
Crete ( ; , Modern Greek, Modern: , Ancient Greek, Ancient: ) is the largest and most populous of the Greek islands, the List of islands by area, 88th largest island in the world and the List of islands in the Mediterranean#By area, fifth la ...
*
Custer
*
DuPage
*
Florence
Florence ( ; ) is the capital city of the Italy, Italian region of Tuscany. It is also the most populated city in Tuscany, with 362,353 inhabitants, and 989,460 in Metropolitan City of Florence, its metropolitan province as of 2025.
Florence ...
*
Frankfort
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Green Garden
*
Homer
Homer (; , ; possibly born ) was an Ancient Greece, Ancient Greek poet who is credited as the author of the ''Iliad'' and the ''Odyssey'', two epic poems that are foundational works of ancient Greek literature. Despite doubts about his autho ...
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Jackson
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Joliet
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Lockport
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Manhattan
Manhattan ( ) is the most densely populated and geographically smallest of the Boroughs of New York City, five boroughs of New York City. Coextensive with New York County, Manhattan is the County statistics of the United States#Smallest, larg ...
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Monee
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New Lenox
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Peotone
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Plainfield
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Reed
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Troy
Troy (/; ; ) or Ilion (; ) was an ancient city located in present-day Hisarlik, Turkey. It is best known as the setting for the Greek mythology, Greek myth of the Trojan War. The archaeological site is open to the public as a tourist destina ...
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Washington
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Wesley
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Wheatland
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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 will
...
*
Wilmington
*
Wilton
See also
References
;Specific
;General
*
External links
*
Will County Board
{{Coord, 41.44, -87.98, display=title, type:adm2nd_region:US-IL_source:UScensus1990
1836 establishments in Illinois
Chicago metropolitan area
Illinois counties
Populated places established in 1836