Rock County is a

county A county is a geographic region of a country used for administrative or other purposesChambers 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 In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sover ...

Wisconsin Wisconsin () is a state in the upper Midwestern United States. Wisconsin is the 25th-largest state by total area and the 20th-most populous. It is bordered by Minnesota to the west, Iowa to the southwest, Illinois to the south, Lake M ...

. As of the 2020 census, the population was 163,687. 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 st ...

is Janesville. Rock County comprises the Janesville- Beloit, WI

Metropolitan Statistical Area In the United States, a metropolitan statistical area (MSA) is a geographical region with a relatively high population density at its core and close economic ties throughout the area. Such regions are neither legally Incorporated town, incorporate ...

and is included in the

Madison Madison may refer to: People * Madison (name), a given name and a surname * James Madison (1751–1836), fourth president of the United States Place names * Madison, Wisconsin, the state capital of Wisconsin and the largest city known by this ...

-Janesville-Beloit, WI

Combined Statistical Area Combined statistical area (CSA) is a United States Office of Management and Budget (OMB) term for a combination of adjacent metropolitan (MSA) and micropolitan statistical areas (µSA) across the 50 US states and the territory of Puerto Ric ...

History

Rock County was created in 1836 as a territorial county on December 7, 1836, from

Milwaukee County Milwaukee County is located in the U.S. state of Wisconsin. At the 2020 census, the population was 939,489, down from 947,735 in 2010. It is both the most populous and most densely populated county in Wisconsin, and the 45th most populous coun ...

and fully organized February 19, 1839. The county is named for the Rock River, which bisects the county from north to south.

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 (1.1%) is water. Cook Memorial Arboretum, a natural area with birding and nature trails, is located northwest of Janesville. It is owned by the Janesville School District.

Transportation

Major highways

Interstate 39 Interstate 39 (I-39) is a highway in the Midwestern United States. I-39 runs from Normal, Illinois, at I-55 to State Trunk Highway 29 (WIS 29) in the town of Rib Mountain, Wisconsin, which is approximately south of Wausau. I- ...

Interstate 43 Interstate 43 (I-43) is a Interstate Highway located entirely within the US state of Wisconsin, connecting I-39/ I-90 in Beloit with Milwaukee and I-41, U.S. Highway 41 (US 41) and US 141 in Green Bay. State Trunk Highway ...

Interstate 90 Interstate 90 (I-90) is an east–west transcontinental freeway and the longest Interstate Highway in the United States at . It begins in Seattle, Washington, and travels through the Pacific Northwest, Mountain West, Great Plains, Midwest, and ...

U.S. Highway 12 * US 14

U.S. Highway 14 * US 51

U.S. Highway 51 U.S. Route 51 or U.S. Highway 51 (US 51) is a major south-north United States highway that extends from the western suburbs of New Orleans, Louisiana, to within of the Wisconsin–Michigan state line. As most of the United States Numbered Highw ...

Highway 11 * WIS 26

Highway 26 * WIS 59

Highway 59 * WIS 67

Highway 67 * WIS 81

Highway 81 * WIS 89

Highway 89 * WIS 104

Highway 104 Route 104, or Highway 104, may refer to: Brazil * BR-104 Canada * New Brunswick Route 104 * Nova Scotia Highway 104 (Trans-Canada Highway) * Prince Edward Island Route 104 * Quebec Route 104 China * China National Highway 104 Costa Rica * ...

Highway 140 * WIS 213

Highway 213

Railroads

Canadian Pacific The Canadian Pacific Railway (french: Chemin de fer Canadien Pacifique) , also known simply as CPR or Canadian Pacific and formerly as CP Rail (1968–1996), is a Canadian Class I railway incorporated in 1881. The railway is owned by Canadi ...

Union Pacific The Union Pacific Railroad , legally Union Pacific Railroad Company and often called simply Union Pacific, is a freight-hauling railroad that operates 8,300 locomotives over routes in 23 U.S. states west of Chicago and New Orleans. Union Paci ...

Wisconsin and Southern Railroad The Wisconsin and Southern Railroad is a Class II regional railroad in Southern Wisconsin and Northeastern Illinois currently operated by Watco. It operates former Chicago, Milwaukee, St. Paul and Pacific Railroad (Milwaukee Road) and Chicago ...

Buses

* Beloit Transit * Janesville Transit System *

List of intercity bus stops in Wisconsin The following is a list of presently operating intercity bus stops in Wisconsin with regular service. The list excludes charter buses, local transit buses, paratransit systems, and trolleybus systems. The following companies provide intercity bus se ...

Airport

Southern Wisconsin Regional Airport Southern Wisconsin Regional Airport is a public airport located southwest of Janesville and north of Beloit in Rock County, Wisconsin, United States. Formerly known as Rock County Airport, it is owned and operated by the Rock County governmen ...

(KJVL) serves Rock County and the surrounding communities.

Adjacent counties

* Green County – west *

Dane County Dane County is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 561,504, making it the second-most populous county in Wisconsin. The county seat is Madison, which is also the state capital. Dane County is the ...

– north * Jefferson County – northeast * Walworth County – east *

Boone County, Illinois Boone County is a county located in the U.S. state of Illinois. As of the 2020 census, the population was 53,448. Its county seat is Belvidere. Boone County is included in the Rockford, IL Metropolitan Statistical Area. History Unlike most ...

– south *

Winnebago County, Illinois Winnebago County is a county located in the U.S. state of Illinois. According to the 2020 census, it had a population of 285,350 making it the seventh most populous county in Illinois behind Cook County and its five surrounding collar counties. ...

– south

Demographics

As of the census of 2020, the population was 163,687. The

population density Population density (in agriculture: standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geographical term.Matt RosenberPopul ...

was . There were 70,068 housing units at an average density of . The racial makeup of the county was 81.3%

White White is the lightest color and is achromatic (having no hue). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully reflect and scatter all the visible wavelengths of light. White on ...

, 5.1%

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 ...

African American African Americans (also referred to as Black Americans and Afro-Americans) are an ethnic group consisting of Americans with partial or total ancestry from sub-Saharan Africa. The term "African American" generally denotes descendants of ens ...

, 1.3%

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 ...

, 0.5% Native American, 4.6% from

other races Other often refers to: * Other (philosophy), a concept in psychology and philosophy Other or The Other may also refer to: Film and television * ''The Other'' (1913 film), a German silent film directed by Max Mack * ''The Other'' (1930 film), a ...

, and 7.2% from two or more races. Ethnically, the population was 9.7%

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 ...

Latino Latino or Latinos most often refers to: * Latino (demonym), a term used in the United States for people with cultural ties to Latin America * Hispanic and Latino Americans in the United States * The people or cultures of Latin America; ** Latin A ...

of any race. As of the

census A census is the procedure of systematically acquiring, recording and calculating information about the members of a given population. This term is used mostly in connection with national population and housing censuses; other common censuses incl ...

of 2010, there were 160,331 people residing in the county. As of the

of 2000, were 152,307 people, 58,617 households, and 40,387 families residing in the county. The

was 211 people per square mile (82/km²). there were 62,187 housing units at an average density of 86 per square mile (33/km²). The racial makeup of the county was 91.01%

white White is the lightest color and is achromatic (having no hue). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully reflect and scatter all the visible wavelengths of light. White on ...

, 4.63%

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 ...

, 0.28% Native American, 0.78%

, 0.04%

Pacific Islander Pacific Islanders, Pasifika, Pasefika, or rarely Pacificers are the peoples of the list of islands in the Pacific Ocean, Pacific Islands. As an ethnic group, ethnic/race (human categorization), racial term, it is used to describe the original p ...

, 1.77% from

, and 1.50% from two or more races. 3.91% of the population were

of any race. 32.8% were 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 ...

, 13.0%

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 ...

, 10.1%

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 ...

, 7.5%

English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national ide ...

and 5.5%

American American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, pe ...

ancestry. There were 58,617 households, out of which 33.60% had children under the age of 18 living with them, 53.50% were

married couples Marriage, also called matrimony or wedlock, is a culturally and often legally recognized union between people called spouses. It establishes rights and obligations between them, as well as between them and their children, and between t ...

living together, 10.90% had a female householder with no husband present, and 31.10% were non-families. 25.10% of all households were made up of individuals, and 9.70% had someone living alone who was 65 years of age or older. The average household size was 2.54 and the average family size was 3.03. In the county, the population was spread out, with 26.50% under the age of 18, 8.60% from 18 to 24, 29.80% from 25 to 44, 22.30% from 45 to 64, and 12.70% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 97.00 males. For every 100 females age 18 and over, there were 94.10 males.

Communities

Cities

* Beloit * Brodhead (mostly in Green County) * Edgerton (partly in

) *

Evansville Evansville is a city in, and the county seat of, Vanderburgh County, Indiana, United States. The population was 118,414 at the 2020 census, making it the state's third-most populous city after Indianapolis and Fort Wayne, the largest city in S ...

* Janesville *

Milton Milton may refer to: Names * Milton (surname), a surname (and list of people with that surname) ** John Milton (1608–1674), English poet * Milton (given name) ** Milton Friedman (1912–2006), Nobel laureate in Economics, author of '' Free t ...

Villages

* Clinton * Orfordville * Footville

Towns

* Avon * Beloit *

Bradford Bradford is a city and the administrative centre of the City of Bradford district in West Yorkshire, England. The city is in the Pennines' eastern foothills on the banks of the Bradford Beck. Bradford had a population of 349,561 at the 2011 ...

Center Center or centre may refer to: Mathematics *Center (geometry), the middle of an object * Center (algebra), used in various contexts ** Center (group theory) ** Center (ring theory) * Graph center, the set of all vertices of minimum eccentrici ...

* Clinton * Edgerton *

Fulton Fulton may refer to: People * Robert Fulton (1765–1815), American engineer and inventor who developed the first commercially successful steam-powered ship * Fulton (surname) Given name * Fulton Allem (born 1957), South African golfer * Fult ...

Harmony In music, harmony is the process by which individual sounds are joined together or composed into whole units or compositions. Often, the term harmony refers to simultaneously occurring frequencies, pitches ( tones, notes), or chords. However ...

* Janesville * Johnstown * La Prairie *

Lima Lima ( ; ), originally founded as Ciudad de Los Reyes (City of The Kings) is the capital and the largest city of Peru. It is located in the valleys of the Chillón River, Chillón, Rímac River, Rímac and Lurín Rivers, in the desert zone of t ...

Magnolia ''Magnolia'' is a large genus of about 210 to 340The number of species in the genus ''Magnolia'' depends on the taxonomic view that one takes up. Recent molecular and morphological research shows that former genera ''Talauma'', ''Dugandiodendro ...

Newark Newark most commonly refers to: * Newark, New Jersey, city in the United States * Newark Liberty International Airport, New Jersey; a major air hub in the New York metropolitan area Newark may also refer to: Places Canada * Niagara-on-the ...

Plymouth Plymouth () is a port city and unitary authority in South West England. It is located on the south coast of Devon, approximately south-west of Exeter and south-west of London. It is bordered by Cornwall to the west and south-west. Plymouth ...

Porter Porter may refer to: Companies * Porter Airlines, Canadian regional airline based in Toronto * Porter Chemical Company, a defunct U.S. toy manufacturer of chemistry sets * Porter Motor Company, defunct U.S. car manufacturer * H.K. Porter, Inc., ...

Rock Rock most often refers to: * Rock (geology), a naturally occurring solid aggregate of minerals or mineraloids * Rock music, a genre of popular music Rock or Rocks may also refer to: Places United Kingdom * Rock, Caerphilly, a location in Wales ...

* Spring Valley *

Turtle Turtles are an order of reptiles known as Testudines, characterized by a special shell developed mainly from their ribs. Modern turtles are divided into two major groups, the Pleurodira (side necked turtles) and Cryptodira (hidden necked tu ...

Union Union commonly refers to: * Trade union, an organization of workers * Union (set theory), in mathematics, a fundamental operation on sets Union may also refer to: Arts and entertainment Music * Union (band), an American rock group ** ''Un ...

Census-designated place

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 ...

Unincorporated communities

* Afton *

Anderson Anderson or Andersson may refer to: Companies * Anderson (Carriage), a company that manufactured automobiles from 1907 to 1910 * Anderson Electric, an early 20th-century electric car * Anderson Greenwood, an industrial manufacturer * Anderson ...

* Avon *

Avalon Avalon (; la, Insula Avallonis; cy, Ynys Afallon, Ynys Afallach; kw, Enys Avalow; literally meaning "the isle of fruit r appletrees"; also written ''Avallon'' or ''Avilion'' among various other spellings) is a mythical island featured in the ...

* Belcrest *

Bergen Bergen (), historically Bjørgvin, is a city and municipality in Vestland county on the west coast of Norway. , its population is roughly 285,900. Bergen is the second-largest city in Norway. The municipality covers and is on the peninsula of ...

* Cainville *

* Charlie Bluff *

Cooksville Cooksville may refer to: Places ;Canada * Cooksville (Mississauga), a neighbourhood in Mississauga, Ontario, Canada **Cooksville GO Station, a station in the GO Transit network located in the neighbourhood **Mississauga East—Cooksville, an electo ...

* Coopers Shores * Crestview * Emerald Grove * Fairfield (partial) * Foxhollow *

* Indianford * Johnstown * Johnstown Center * Koshkonong (partial) *

Leyden Leiden (; in English and archaic Dutch also Leyden) is a city and municipality in the province of South Holland, Netherlands. The municipality of Leiden has a population of 119,713, but the city forms one densely connected agglomeration wit ...

* Lima Center *

* Maple Beach *

* Newville *

Porters Porters may refer to: * Porters, Virginia, an unincorporated community in Virginia, United States * Porters, Wisconsin, an unincorporated community in Wisconsin, United States * Porters Ski Area, a ski resort in New Zealand * ''Porters'' (TV ser ...

* Shopiere * Stebbinsville * Tiffany *

* Victory Heights

Ghost towns/neighborhoods

* Fellows *

Jefferson Prairie Settlement Jefferson Prairie Settlement was a pioneer colony of Norwegian-Americans located in the Town of Clinton, in Rock County, Wisconsin, United States. This site and the nearby Rock Prairie settlement outside Orfordville served as centers for both N ...

Politics

Hillary Clinton Hillary Diane Rodham Clinton ( Rodham; born October 26, 1947) is an American politician, diplomat, and former lawyer who served as the 67th United States Secretary of State for President Barack Obama from 2009 to 2013, as a United States sen ...

carried the county in 2016, but it was the smallest margin of victory since

Michael Dukakis Michael Stanley Dukakis (; born November 3, 1933) is an American retired lawyer and politician who served as governor of Massachusetts from 1975 to 1979 and again from 1983 to 1991. He is the longest-serving governor in Massachusetts history a ...

in 1988.

Education

School districts include:
Text list
/ref> *

Albany School District The City School District of Albany (also known as the Albany City School District) is the public school district of Albany, New York. The district is an independent public entity. It is governed by the City School District of Albany Board of E ...

* Beloit School District *

Beloit Turner School District Beloit may refer to Places in the United States * Beloit, Alabama * Beloit, Georgia *Beloit, Iowa * Beloit, Kansas * Beloit, Ohio *Beloit, Wisconsin * Beloit (town), Wisconsin, adjacent to the city of Beloit *Beloit Township, Mitchell County, Kansa ...

* Brodhead School District * Clinton Community School District * Delavan-Darien School District * Edgerton School District * Evansville Community School District * Fort Atkinson School District * Janesville School District * Milton School District * Oregon School District *

Parkview School District Parkview School District is a school district serving areas of Rock County, Wisconsin. The district includes the villages of Orfordville and Footville, as well as the towns of Spring Valley, Plymouth, Magnolia and Newark. Schools * Parkview ...

Stoughton Area School District Stoughton Area School District (SASD) is a school district headquartered in Stoughton, Wisconsin. It includes sections of Dane County and Rock County. History In 1997 it began having 5th and 6th graders in Sandhill School. Beginning in the 197 ...

* Whitewater School District There is a state-operated school,

Wisconsin School for the Blind and Visually Impaired The Wisconsin School for the Blind and Visually Impaired (WSBVI) is a state school that specializes in teaching the visually impaired. It is operated by the Wisconsin Center for the Blind and Visually Impaired (WCBVI), a unit of the Wisconsin Depar ...

Tree cities

* Beloit * Clinton * Edgerton * Evansville * Janesville

References

External links

Rock County government website

Rock County map
from the Wisconsin Department of Transportation
Rock County 5.0

Rock County Historical Society

Beloit Janesville Symphony
{{authority control 1839 establishments in Wisconsin Territory Populated places established in 1839