RANKING · 2020 CENSUS · 72 SHOWN OF 72

Largest by population, Wisconsin counties · 2020

The most populous Wisconsin counties as of the 2020 population estimates. This list covers the 72 counties in Wisconsin that qualify, ranked against each other statewide.

WisconsinAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDFastest growing Fastest shrinking Most population gained Most population lost Most densely populated Most sparsely populated

YEAR1990 2000 2010 2020 2025

RANKPLACESTATETOTAL POPULATIONVS 2000

01Milwaukee County, WIWI939,489−0%

02Dane County, WIWI561,504+32%

03Waukesha County, WIWI406,978+13%

04Brown County, WIWI268,740+19%

05Racine County, WIWI197,727+5%

06Outagamie County, WIWI190,705+18%

07Winnebago County, WIWI171,730+10%

08Kenosha County, WIWI169,151+13%

09Rock County, WIWI163,687+7%

10Marathon County, WIWI138,013+10%

11Washington County, WIWI136,761+16%

12La Crosse County, WIWI120,784+13%

13Sheboygan County, WIWI118,034+5%

14Walworth County, WIWI106,478+14%

15Eau Claire County, WIWI105,710+13%

16Fond du Lac County, WIWI104,154+7%

17St. Croix County, WIWI93,536+48%

18Ozaukee County, WIWI91,503+11%

19Dodge County, WIWI89,396+4%

20Jefferson County, WIWI84,900+15%

21Manitowoc County, WIWI81,359−2%

22Wood County, WIWI74,207−2%

23Portage County, WIWI70,377+5%

24Chippewa County, WIWI66,297+20%

25Sauk County, WIWI65,763+19%

26Columbia County, WIWI58,490+11%

27Calumet County, WIWI52,442+29%

28Grant County, WIWI51,938+5%

29Waupaca County, WIWI51,812+0%

30Barron County, WIWI46,711+4%

31Monroe County, WIWI46,274+13%

32Dunn County, WIWI45,440+14%

33Polk County, WIWI44,977+9%

34Douglas County, WIWI44,295+2%

35Pierce County, WIWI42,212+15%

36Marinette County, WIWI41,872−3%

37Shawano County, WIWI40,881+1%

38Oconto County, WIWI38,965+9%

39Oneida County, WIWI37,845+3%

40Green County, WIWI37,093+10%

41Clark County, WIWI34,659+3%

42Trempealeau County, WIWI30,760+14%

43Vernon County, WIWI30,714+9%

44Door County, WIWI30,066+8%

45Lincoln County, WIWI28,415−4%

46Juneau County, WIWI26,718+10%

47Waushara County, WIWI24,520+6%

48Iowa County, WIWI23,709+4%

49Vilas County, WIWI23,047+10%

50Jackson County, WIWI21,145+11%

51Adams County, WIWI20,654+11%

52Kewaunee County, WIWI20,563+2%

53Taylor County, WIWI19,913+1%

54Langlade County, WIWI19,491−6%

55Green Lake County, WIWI19,018−0%

56Sawyer County, WIWI18,074+12%

57Richland County, WIWI17,304−3%

58Washburn County, WIWI16,623+4%

59Lafayette County, WIWI16,611+3%

60Burnett County, WIWI16,526+5%

61Bayfield County, WIWI16,220+8%

62Crawford County, WIWI16,113−7%

63Ashland County, WIWI16,027−5%

64Marquette County, WIWI15,592−2%

65Rusk County, WIWI14,188−8%

66Price County, WIWI14,054−11%

67Buffalo County, WIWI13,317−4%

68Forest County, WIWI9,179−8%

69Pepin County, WIWI7,318+1%

70Iron County, WIWI6,137−11%

71Florence County, WIWI4,558−10%

72Menominee County, WIWI4,255−7%

SHOWING 1–72 OF 72

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS