Rock County, Wisconsin
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Rock County is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 163,687.[1] Its county seat is Janesville.[2] Rock County comprises the Janesville–Beloit metropolitan statistical area and is included in the Madison–Janesville–Beloit combined statistical area.
History
Rock County was created as a territorial county on December 7, 1836, from Milwaukee County and fully organized February 19, 1839.[3] The county is named for the Rock River, which bisects the county from north to south.[4]
Geography
According to the U.S. Census Bureau, the county has a total area of Script error: No such module "convert"., of which Script error: No such module "convert". is land and Script error: No such module "convert". (1.1%) is water.[5]
Cook Memorial Arboretum, a natural area with birding and nature trails, is located northwest of Janesville. It is owned by the Janesville School District.[6]
Transportation
Major highways
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- File:I-39.svg Interstate 39
- File:I-43.svg Interstate 43
- File:I-90.svg Interstate 90
- File:US 12.svg U.S. Highway 12
- File:US 14.svg U.S. Highway 14
- File:US 51.svg U.S. Highway 51
- File:WIS 11.svg Highway 11
- File:WIS 26.svg Highway 26
- File:WIS 59.svg Highway 59
- File:WIS 67.svg Highway 67
- File:WIS 81.svg Highway 81
- File:WIS 89.svg Highway 89
- File:WIS 104.svg Highway 104
- File:WIS 138.svg Highway 138
- File:WIS 140.svg Highway 140
- File:WIS 213.svg Highway 213
Railroads
Buses
Airport
Southern Wisconsin Regional Airport (KJVL) serves Rock County and the surrounding communities.
Adjacent counties
- Green County – west
- Dane County – north
- Jefferson County – northeast
- Walworth County – east
- Boone County, Illinois – south
- Winnebago County, Illinois – south
Demographics
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| Census | Pop. | Template:Sronly | %± |
|---|---|---|---|
| 1840 | 1,701 | — | |
| 1850 | 20,750 | Script error: No such module "String".% | |
| 1860 | 36,690 | Script error: No such module "String".% | |
| 1870 | 39,030 | Script error: No such module "String".% | |
| 1880 | 38,823 | Script error: No such module "String".% | |
| 1890 | 43,220 | Script error: No such module "String".% | |
| 1900 | 51,203 | Script error: No such module "String".% | |
| 1910 | 55,538 | Script error: No such module "String".% | |
| 1920 | 66,150 | Script error: No such module "String".% | |
| 1930 | 74,206 | Script error: No such module "String".% | |
| 1940 | 80,173 | Script error: No such module "String".% | |
| 1950 | 92,778 | Script error: No such module "String".% | |
| 1960 | 113,913 | Script error: No such module "String".% | |
| 1970 | 131,970 | Script error: No such module "String".% | |
| 1980 | 139,420 | Script error: No such module "String".% | |
| 1990 | 139,510 | Script error: No such module "String".% | |
| 2000 | 152,307 | Script error: No such module "String".% | |
| 2010 | 160,331 | Script error: No such module "String".% | |
| 2020 | 163,687 | Script error: No such module "String".% | |
| 2025 (est.) | 166,472 | [7] Increase | Script error: No such module "String".% |
| U.S. Decennial Census[8] 1790–1960[9] 1900–1990[10] 1990–2000[11] 2010[12] 2020[1] | |||
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Racial and ethnic composition
| Race / ethnicity (NH = Non-Hispanic) | Pop 1980[13] | Pop 1990[14] | Pop 2000[15] | Pop 2010[16] | Pop 2020[17] | % 1980 | % 1990 | % 2000 | % 2010 | % 2020 |
|---|---|---|---|---|---|---|---|---|---|---|
| White alone (NH) | 132,785 | 129,788 | 135,884 | 135,526 | 129,796 | 95.24% | 93.03% | 89.22% | 84.53% | 79.30% |
| Black or African American alone (NH) | 4,660 | 6,593 | 6,943 | 7,766 | 8,060 | 3.34% | 4.73% | 4.56% | 4.84% | 4.92% |
| Native American or Alaska Native alone (NH) | 269 | 356 | 376 | 383 | 386 | 0.19% | 0.26% | 0.25% | 0.24% | 0.24% |
| Asian alone (NH) | 539 | 932 | 1,180 | 1,603 | 2,022 | 0.39% | 0.67% | 0.77% | 1.00% | 1.24% |
| Native Hawaiian or Pacific Islander alone (NH) | x [18] | x [19] | 50 | 35 | 50 | x | x | 0.03% | 0.02% | 0.03% |
| Other race alone (NH) | 209 | 87 | 143 | 125 | 523 | 0.15% | 0.06% | 0.09% | 0.08% | 0.32% |
| Mixed race or Multiracial (NH) | x [20] | x [21] | 1,778 | 2,769 | 7,050 | x | x | 1.17% | 1.73% | 4.31% |
| Hispanic or Latino (any race) | 958 | 1,754 | 5,953 | 12,124 | 15,800 | 0.69% | 1.26% | 3.91% | 7.56% | 9.65% |
| Total | 139,420 | 139,510 | 152,307 | 160,331 | 163,687 | 100.00% | 100.00% | 100.00% | 100.00% | 100.00% |
2020 census
As of the 2020 census, the population was 163,687 and the median age was 40.3 years. 22.9% of residents were under the age of 18 and 17.6% of residents were 65 years of age or older. For every 100 females there were 97.5 males, and for every 100 females age 18 and over there were 95.1 males age 18 and over.[1][22]
The population density was Script error: No such module "convert"., and there were 70,068 housing units at an average density of Script error: No such module "convert"..[1][22]
The racial makeup of the county was 81.3% White, 5.1% Black or African American, 0.5% American Indian and Alaska Native, 1.3% Asian, <0.1% Native Hawaiian and Pacific Islander, 4.6% from some other race, and 7.2% from two or more races. Hispanic or Latino residents of any race comprised 9.7% of the population.[23]
80.0% of residents lived in urban areas, while 20.0% lived in rural areas.[24]
There were 65,937 households in the county, of which 29.6% had children under the age of 18 living in them. Of all households, 46.1% were married-couple households, 18.6% were households with a male householder and no spouse or partner present, and 26.1% were households with a female householder and no spouse or partner present. About 28.3% of all households were made up of individuals and 12.0% had someone living alone who was 65 years of age or older.[22]
Of those housing units, 5.9% were vacant. Among occupied housing units, 69.0% were owner-occupied and 31.0% were renter-occupied. The homeowner vacancy rate was 1.0% and the rental vacancy rate was 4.8%.[22]
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2010 census
As of the 2010 census, there were 160,331 people residing in the county.[25]
2000 census
As of the 2000 census, there were 152,307 people, 58,617 households, and 40,387 families residing in the county. The population density was Script error: No such module "convert".. There were 62,187 housing units at an average density of Script error: No such module "convert"..[25]
The racial makeup of the county was 91.01% white, 4.63% black or African American, 0.28% Native American, 0.78% Asian, 0.04% Pacific Islander, 1.77% from other races, and 1.50% from two or more races. 3.91% of the population were Hispanic or Latino of any race. 32.8% were of German, 13.0% Norwegian, 10.1% Irish, 7.5% English and 5.5% American ancestry.[25]
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 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.[25]
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.[25]
Communities
Cities
- Beloit
- Brodhead (mostly in Green County)
- Edgerton (partly in Dane County)
- Evansville
- Janesville (County seat)
- Milton
Villages
Towns
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Census-designated places
Unincorporated communities
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- Afton
- Anderson
- Avalon
- Avon
- Belcrest
- Bergen
- Cainville
- Center
- Charlie Bluff
- Cooksville
- Coopers Shores
- Crestview
- Emerald Grove
- Fairfield (partial)
- Foxhollow
- Indianford
- Johnstown
- Johnstown Center
- Koshkonong (partial)
- Leyden
- Lima Center
- Magnolia
- Mallwood
- Maple Beach
- Newark
- Newville
- Porters
- Stebbinsville
- Tiffany
- Union
- Victory Heights
Ghost towns/neighborhoods
Politics
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Education
School districts include:[26]
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- Albany School District
- School District of Beloit
- Beloit Turner School District
- Brodhead School District
- Clinton Community School District
- Delavan-Darien School District
- Edgerton School District
- Evansville Community School District
- Fort Atkinson School District
- School District of Janesville
- Milton School District
- Oregon School District
- Parkview School District
- Stoughton Area School District
- Whitewater School District
There is a state-operated school, Wisconsin School for the Blind and Visually Impaired.
See also
References
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- ↑ "Rock County, origin of place name Script error: No such module "webarchive"." Dictionary of Wisconsin History.
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- ↑ Great Wisconsin Birding & Nature Trail. Cook Memorial Arboretum.
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- ↑ included in the Asian category in the 1980 Census
- ↑ included in the Asian category in the 1990 Census
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Further reading
- Brown, William F. Rock County, Wisconsin: A New History... Vol. 1, Chicago: Cooper, 1908.
- Brown, William F. Rock County, Wisconsin: A New History... Vol. 2, Chicago: Cooper, 1908.
- Commemorative Biographical Record of the Counties of Rock, Green, Grant, Iowa, and Lafayette, Wisconsin, Containing Biographical Sketches of Prominent and Representative Citizens, and of Many of the Early Settled Families. Chicago: J. H. Beers and Co., 1901.
- The History of Rock County, Wisconsin. Chicago: Western Historical Company, 1879.
- Portrait and Biographical Album of Rock County, Wisconsin. Chicago: Acme Publishing Company, 1889.
- Sayre, David F. "Early Life in Southern Wisconsin", Wisconsin Magazine of History, vol. 3, no. 4 (June 1920), pp. 420–427.
- Smith, Isaac T. "Early Settlement of Rock County" in Wisconsin Historical Collections, vol. VI. Madison, Wis.: Atwood & Culver, 1872, pp. 416–425.
- Walterman, Thomas. There Stands "Old Rock": Rock County, Wisconsin and the War to Preserve the Union. Friendship, Wis.: New Past Press, 2001. Template:ISBN
External links
- Rock County government website
- Rock County map from the Wisconsin Department of Transportation
- Rock County 5.0
- Rock County Historical Society
- Rock County Genealogical Society
- Beloit Janesville Symphony
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