Largest Counties in Wisconsin

There are a total of 72 counties or county equivalents in the U.S. state of Wisconsin. Among them, the five biggest counties by population are Milwaukee, Dane, Waukesha, Brown, and Racine. In the following table, you will see the list of all counties in Wisconsin, each with population, land area, density and the time of establishment.

Rank County Population County Seat Established Area (km2) Density
1 Milwaukee County 947,724 Milwaukee 1834 625 1,516.36
2 Dane County 488,062 Madison 1836 3,101 157.39
3 Waukesha County 389,880 Waukesha 1846 1,423 273.98
4 Brown County 247,996 Green Bay 1818 1,372 180.76
5 Racine County 195,397 Racine 1836 861 226.94
6 Outagamie County 176,684 Appleton 1851 1,651 107.02
7 Winnebago County 166,983 Oshkosh 1840 1,125 148.43
8 Kenosha County 166,415 Kenosha 1850 704 236.38
9 Rock County 160,320 Janesville 1836 1,860 86.19
10 Marathon County 134,052 Wausau 1850 4,001 33.5
11 Washington County 131,876 West Bend 1836 1,116 118.17
12 Sheboygan County 115,496 Sheboygan 1836 1,324 87.23
13 La Crosse County 114,627 La Crosse 1851 1,170 97.97
14 Walworth County 102,217 Elkhorn 1836 1,438 71.08
15 Fond du Lac County 101,622 Fond Du lac 1836 1,864 54.52
16 Eau Claire County 98,725 Eau Claire 1856 1,652 59.76
17 Dodge County 88,748 Juneau 1836 2,268 39.13
18 Ozaukee County 86,384 Port Washington 1853 604 143.02
19 St. Croix County 84,334 Hudson 1840 1,871 45.07
20 Jefferson County 83,675 Jefferson 1836 1,441 58.07
21 Manitowoc County 81,431 Manitowoc 1836 1,526 53.36
22 Wood County 74,738 Wisconsin Rapids 1856 2,054 36.39
23 Portage County 70,008 Stevens Point 1836 2,074 33.76
24 Chippewa County 62,404 Chippewa Falls 1845 2,612 23.89
25 Sauk County 61,965 Baraboo 1840 2,152 28.79
26 Columbia County 56,822 Portage 1846 1,983 28.65
27 Waupaca County 52,399 Waupaca 1851 1,937 27.05
28 Grant County 51,197 Lancaster 1837 2,970 17.24
29 Calumet County 48,960 Chilton 1836 824 59.42
30 Barron County 45,859 Barron 1859 2,234 20.53
31 Monroe County 44,662 Sparta 1854 2,333 19.14
32 Polk County 44,194 Balsam Lake 1853 2,367 18.67
33 Douglas County 44,148 Superior 1854 3,378 13.07
34 Dunn County 43,846 Menomonie 1854 2,202 19.91
35 Shawano County 41,938 Shawano 1853 2,313 18.13
36 Marinette County 41,738 Marinette 1879 3,624 11.52
37 Pierce County 41,008 Ellsworth 1853 1,486 27.6
38 Oconto County 37,649 Oconto 1851 2,585 14.56
39 Green County 36,831 Monroe 1837 1,512 24.36
40 Oneida County 35,987 Rhinelander 1885 2,883 12.48
41 Clark County 34,679 Neillsville 1853 3,133 11.07
42 Vernon County 29,762 Viroqua 1851 2,050 14.52
43 Trempealeau County 28,805 Whitehall 1854 1,898 15.18
44 Lincoln County 28,732 Merrill 1874 2,277 12.62
45 Door County 27,774 Sturgeon Bay 1851 1,248 22.25
46 Juneau County 26,653 Mauston 1856 1,986 13.42
47 Waushara County 24,485 Wautoma 1851 1,622 15.1
48 Iowa County 23,676 Dodgeville 1829 1,975 11.99
49 Vilas County 21,419 Eagle River 1893 2,219 9.65
50 Adams County 20,864 Friendship 1848 1,672 12.48
51 Taylor County 20,678 Medford 1875 2,525 8.19
52 Kewaunee County 20,563 Kewaunee 1852 887 23.18
53 Jackson County 20,438 Black River falls 1853 2,558 7.99
54 Langlade County 19,966 Antigo 1879 2,255 8.85
55 Green Lake County 19,040 Green Lake 1858 905 21.04
56 Richland County 18,010 Richland Center 1842 1,518 11.86
57 Lafayette County 16,825 Darlington 1846 1,641 10.25
58 Crawford County 16,633 Prairie Du chien 1818 1,478 11.25
59 Sawyer County 16,546 Hayward 1883 3,256 5.08
60 Ashland County 16,146 Ashland 1860 2,707 5.96
61 Washburn County 15,900 Shell Lake 1883 2,065 7.7
62 Burnett County 15,446 Siren 1856 2,129 7.26
63 Marquette County 15,393 Montello 1836 1,180 13.04
64 Bayfield County 15,003 Washburn 1845 3,828 3.92
65 Rusk County 14,744 Ladysmith 1901 2,366 6.23
66 Price County 14,148 Phillips 1879 3,249 4.35
67 Buffalo County 13,576 Alma 1853 1,740 7.8
68 Forest County 9,293 Crandon 1885 2,626 3.54
69 Pepin County 7,458 Durand 1858 601 12.41
70 Iron County 5,905 Hurley 1893 1,964 3.01
71 Florence County 4,412 Florence 1881 1,264 3.49
72 Menominee County 4,221 Keshena 1959 926 4.56

Largest Counties in Wisconsin

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