
Wisconsin is divided into 72 counties, each serving as an administrative region within the state. Use the interactive maps below to explore counties and their boundaries. Download free maps or learn more about creating a custom map of Wisconsin to visualize your own data.
| # | County | County seat | Year founded |
|---|---|---|---|
| 1 | Adams | Friendship | 1848 |
| 2 | Ashland | Ashland | 1860 |
| 3 | Barron | Barron | 1859 |
| 4 | Bayfield | Washburn | 1845 |
| 5 | Brown | Green Bay | 1818 |
| 6 | Buffalo | Alma | 1853 |
| 7 | Burnett | Siren | 1856 |
| 8 | Calumet | Chilton | 1836 |
| 9 | Chippewa | Chippewa Falls | 1845 |
| 10 | Clark | Neillsville | 1853 |
| 11 | Columbia | Portage | 1846 |
| 12 | Crawford | Prairie du Chien | 1818 |
| 13 | Dane | Madison | 1836 |
| 14 | Dodge | Juneau | 1836 |
| 15 | Door | Sturgeon Bay | 1851 |
| 16 | Douglas | Superior | 1854 |
| 17 | Dunn | Menomonie | 1854 |
| 18 | Eau Claire | Eau Claire | 1856 |
| 19 | Florence | Florence | 1882 |
| 20 | Fond du Lac | Fond du Lac | 1836 |
| 21 | Forest | Crandon | 1885 |
| 22 | Grant | Lancaster | 1837 |
| 23 | Green | Monroe | 1837 |
| 24 | Green Lake | Green Lake | 1858 |
| 25 | Iowa | Dodgeville | 1829 |
| 26 | Iron | Hurley | 1893 |
| 27 | Jackson | Black River Falls | 1853 |
| 28 | Jefferson | Jefferson | 1836 |
| 29 | Juneau | Mauston | 1857 |
| 30 | Kenosha | Kenosha | 1850 |
| 31 | Kewaunee | Kewaunee | 1852 |
| 32 | La Crosse | La Crosse | 1851 |
| 33 | Lafayette | Darlington | 1846 |
| 34 | Langlade | Antigo | 1879 |
| 35 | Lincoln | Merrill | 1874 |
| 36 | Manitowoc | Manitowoc | 1836 |
| 37 | Marathon | Wausau | 1850 |
| 38 | Marinette | Marinette | 1879 |
| 39 | Marquette | Montello | 1836 |
| 40 | Menominee | Keshena | 1959 |
| 41 | Milwaukee | Milwaukee | 1834 |
| 42 | Monroe | Sparta | 1854 |
| 43 | Oconto | Oconto | 1851 |
| 44 | Oneida | Rhinelander | 1887 |
| 45 | Outagamie | Appleton | 1851 |
| 46 | Ozaukee | Port Washington | 1853 |
| 47 | Pepin | Durand | 1858 |
| 48 | Pierce | Ellsworth | 1853 |
| 49 | Polk | Balsam Lake | 1853 |
| 50 | Portage | Stevens Point | 1836 |
| 51 | Price | Phillips | 1879 |
| 52 | Racine | Racine | 1836 |
| 53 | Richland | Richland Center | 1842 |
| 54 | Rock | Janesville | 1836 |
| 55 | Rusk | Ladysmith | 1901 |
| 56 | Saint Croix | Hudson | 1840 |
| 57 | Sauk | Baraboo | 1840 |
| 58 | Sawyer | Hayward | 1883 |
| 59 | Shawano | Shawano | 1853 |
| 60 | Sheboygan | Sheboygan | 1836 |
| 61 | Taylor | Medford | 1875 |
| 62 | Trempealeau | Whitehall | 1854 |
| 63 | Vernon | Viroqua | 1851 |
| 64 | Vilas | Eagle River | 1893 |
| 65 | Walworth | Elkhorn | 1836 |
| 66 | Washburn | Shell Lake | 1883 |
| 67 | Washington | West Bend | 1836 |
| 68 | Waukesha | Waukesha | 1846 |
| 69 | Waupaca | Waupaca | 1851 |
| 70 | Waushara | Wautoma | 1851 |
| 71 | Winnebago | Oshkosh | 1840 |
| 72 | Wood | Wisconsin Rapids | 1856 |
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This map is divided into 72 counties.
Jan 12, 2026:
Aug 26, 2024:
Wisconsin has 72 counties.
The largest county by area in Wisconsin is Marathon County, with about 1,576 square miles (approximately 4,083 km²).
The smallest county by area is Pepin County, with around 249 square miles (about 645 km²). Pepin lies along the Mississippi River in western Wisconsin.
Milwaukee County is the most populous county in Wisconsin, with the city of Milwaukee as its county seat.
You can use Ultimaps to create custom maps of Wisconsin. Color-code counties manually or upload data, place pins, customize look and feel and export to PNG, PDF or SVG.