Map of Rock County, Wisconsin

Written and Fact-checked by | Updated On: January 13, 2026, 05:15 ET

Map of Rock County - Rock County is a county located in the U.S. state of Wisconsin. Rock County Map showing cities, highways, important places and water bodies. Get Where is Rock County located in the map, major cities in Rock county, population, areas, and places of interest.

Map of Rock County, Wisconsin

Map of Rock County, Wisconsin

About Rock County Map, Alabama: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.

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  • Map of Rock County, Wisconsin

    Facts about Rock County, Wisconsin

    CountryUnited States
    StateWisconsin
    RegionSouthern Wisconsin
    County SeatJanesville
    Named AfterRock River
    Established1839
    Organized1839
    Coordinates42.67° N, 89.07° W
    Total Area~726 sq mi
    Land Area~718 sq mi
    Water Area~8 sq mi
    Population (2020)163,129
    Population RankSixth most populous county in Wisconsin
    Largest CityJanesville
    Main IndustriesManufacturing, Healthcare, Agriculture, Education
    Major HighwaysInterstate 39, Interstate 90, U.S. Highway 14, State Highway 26
    Time ZoneCentral Time (UTC−06:00)
    Known ForRock River Valley, manufacturing base, agricultural production
    Official Websitehttps://www.co.rock.wi.us

    Top Attractions in Rock County, Wisconsin

    • Rock County Courthouse – Historic courthouse.
    • Hancock Park – Trails and picnic areas.
    • Downtown Janesville Historic District – Shops and dining.
    • Rotary Botanical Gardens – Gardens and walking paths.
    • Milton House Historic Site – Underground Railroad museum.
    • Rock River – Boating and scenic views.
    • Rock County Historical Society Museum – Local history exhibits.
    • Traxler Park – Recreation and sports facilities.
    • Local Covered Bridges – Historic bridges.
    • Scenic Roadways – Countryside drives.

    List of Cities and Towns in Rock County, Wisconsin

    Janesville, Beloit, Milton, Edgerton, Evansville, Clinton, Orfordville, Footville