Map of Jefferson County, Wisconsin

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

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

Map of Jefferson County, Wisconsin

Map of Jefferson County, Wisconsin

About Jefferson 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 Jefferson County, Wisconsin

    Facts about Jefferson County, Wisconsin

    CountryUnited States
    StateWisconsin
    RegionSoutheastern Wisconsin
    County SeatJefferson
    Named AfterThomas Jefferson
    Established1839
    Organized1839
    Coordinates43.02° N, 88.78° W
    Total Area~556 sq mi
    Land Area~550 sq mi
    Water Area~6 sq mi
    Population (2020)84,900
    Population RankUpper mid-sized county in Wisconsin
    Largest CityWatertown (partially)
    Main IndustriesManufacturing, Agriculture, Healthcare, Logistics
    Major HighwaysInterstate 94, U.S. Highway 18, State Highway 26
    Time ZoneCentral Time (UTC−06:00)
    Known ForTransportation corridors, agriculture, historic communities
    Official Websitehttps://www.jeffersoncountywi.gov

    Top Attractions in Jefferson County, Wisconsin

    • National Historic Sites of Jefferson – Historic landmarks and buildings.
    • Lake Koshkonong – Boating and fishing lake.
    • Watertown Historic District – Downtown historic area.
    • Jefferson County Courthouse – Historic courthouse.
    • Ice Age National Scenic Trail – Hiking and nature trail.
    • Rock River Park – Riverfront recreation and picnic areas.
    • Local Covered Bridges – Historic bridges.
    • Watertown Riverwalk – Scenic walking path.
    • Jefferson County Fairgrounds – Annual fair and events.
    • Historic Museums of Jefferson – Local history exhibits.

    List of Cities and Towns in Jefferson County, Wisconsin

    Jefferson, Watertown (portion), Fort Atkinson, Lake Mills, Oconomowoc (portion), Cambridge (portion), Waterloo (portion), Whitewater (portion), Johnson Creek, Palmyra, Sullivan, Milford, Hebron, Ixonia, Jefferson (Town), Koshkonong, Lake Mills (Town), Menomonee, Milford (Town), Oakland, Sumner, Sullivan (Town), Watertown (Town), Waterloo (Town)