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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Railroads

Buses

Airport

Southern Wisconsin Regional Airport (KJVL) serves Rock County and the surrounding communities.

Adjacent counties

Demographics

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Historical population
CensusPop.Template:Sronly
18401,701
185020,750Script error: No such module "String".%
186036,690Script error: No such module "String".%
187039,030Script error: No such module "String".%
188038,823Script error: No such module "String".%
189043,220Script error: No such module "String".%
190051,203Script error: No such module "String".%
191055,538Script error: No such module "String".%
192066,150Script error: No such module "String".%
193074,206Script error: No such module "String".%
194080,173Script error: No such module "String".%
195092,778Script error: No such module "String".%
1960113,913Script error: No such module "String".%
1970131,970Script error: No such module "String".%
1980139,420Script error: No such module "String".%
1990139,510Script error: No such module "String".%
2000152,307Script error: No such module "String".%
2010160,331Script error: No such module "String".%
2020163,687Script error: No such module "String".%
2024 (est.)165,461[7]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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As of the census of 2020,[1] the population was 163,687. The population density was Script error: No such module "convert".. There were 70,068 housing units at an average density of Script error: No such module "convert".. The racial makeup of the county was 81.3% White, 5.1% Black or African American, 1.3% Asian, 0.5% Native American, 4.6% from other races, and 7.2% from two or more races. Ethnically, the population was 9.7% Hispanic or Latino of any race.

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File:USA Rock County, Wisconsin age pyramid.svg
2000 Census Age Pyramid for Rock County

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As of the census[13] of 2010, there were 160,331 people residing in the county.

As of the census[13] of 2000, 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".. 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.

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.

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

Villages

Towns

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Census-designated places

Unincorporated communities

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Ghost towns/neighborhoods

Politics

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Education

School districts include:[14]

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There is a state-operated school, Wisconsin School for the Blind and Visually Impaired.

See also

References

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  4. "Rock County, origin of place name" Dictionary of Wisconsin History.
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  6. Great Wisconsin Birding & Nature Trail. Cook Memorial Arboretum.
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Further reading

External links

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