RANKING · 2024 ACS · 72 SHOWN OF 72

Largest Czech population, Wisconsin counties

Wisconsin counties ranked by the number of residents who are Czech ancestry, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 72 counties in Wisconsin that qualify, ranked against each other statewide. The median across all 72 is 579. Biggest climber in the top 100 since 2020: Douglas County, WI, up 16 places to #31.

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WisconsinAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPCZECH POPULATIONVS 2010

01Dane County, WIWI590,3756,079−14%

02Milwaukee County, WIWI924,2165,871−36%

03▲2Waukesha County, WIWI417,2104,983−16%

04▼1Brown County, WIWI275,8034,599−27%

05▼1Manitowoc County, WIWI81,7103,874−49%

06Racine County, WIWI198,9192,760−31%

07▲1La Crosse County, WIWI121,3392,464+3%

08▼1Marathon County, WIWI139,4322,430+3%

09Kewaunee County, WIWI20,7581,597−38%

10Outagamie County, WIWI195,8941,597−33%

11▲1St. Croix County, WIWI98,2761,452−2%

12▼1Winnebago County, WIWI174,2181,427−30%

13▲7Barron County, WIWI46,4841,399−18%

14▲8Eau Claire County, WIWI109,0331,398−28%

15▼1Chippewa County, WIWI67,6141,319−34%

16▲2Kenosha County, WIWI168,4481,220−39%

17▼4Rock County, WIWI166,4721,209−24%

18▼1Langlade County, WIWI19,5341,151−18%

19▼3Walworth County, WIWI106,1271,053−28%

20▼5Washington County, WIWI139,238962−40%

21Grant County, WIWI52,446945−33%

22▲3Ozaukee County, WIWI94,346897−27%

23▲4Vernon County, WIWI31,443851−32%

24▼5Wood County, WIWI74,060797−39%

25▲4Sauk County, WIWI66,652792−29%

26▲8Price County, WIWI13,988785−28%

27▲9Calumet County, WIWI53,982695+22%

28▲2Sheboygan County, WIWI118,047691−49%

29▲12Monroe County, WIWI46,572691−18%

30▼7Portage County, WIWI71,943676−34%

31▲16Douglas County, WIWI43,990639+25%

32▲6Marinette County, WIWI42,574635−29%

33▼5Oconto County, WIWI40,195626−43%

34▲8Jefferson County, WIWI86,505621−37%

35▼9Fond du Lac County, WIWI104,669590−38%

36▼12Pierce County, WIWI43,519579−44%

37▼2Iowa County, WIWI23,951563−29%

38▲8Dodge County, WIWI89,097560−40%

39▼7Oneida County, WIWI38,131554−17%

40▼7Shawano County, WIWI41,560552−33%

41▼10Crawford County, WIWI15,910541−56%

42▼3Polk County, WIWI45,803525−18%

43▲1Richland County, WIWI17,036480−42%

44▼7Columbia County, WIWI58,132477−44%

45▼5Dunn County, WIWI46,223477−26%

46▼3Door County, WIWI30,616435−42%

47▲2Adams County, WIWI21,752406−31%

48▲3Rusk County, WIWI14,146404−30%

49▲3Waupaca County, WIWI51,461392−20%

50▼5Juneau County, WIWI26,649386−60%

51▲2Vilas County, WIWI23,761375−13%

52▲3Clark County, WIWI35,052361−39%

53▲7Washburn County, WIWI17,087357−17%

54▲3Trempealeau County, WIWI31,171331−16%

55▼1Ashland County, WIWI16,203289+13%

56▲2Waushara County, WIWI25,223288−11%

57▼9Taylor County, WIWI20,118270−38%

58▼2Jackson County, WIWI20,999262−34%

59▲4Green County, WIWI37,227255−31%

60▼10Sawyer County, WIWI18,846246−30%

61▼2Bayfield County, WIWI16,787239−44%

62Burnett County, WIWI17,223193−20%

63▼2Lincoln County, WIWI28,403174−67%

64Forest County, WIWI9,574125−16%

65▲3Buffalo County, WIWI13,3181170%

66▼1Marquette County, WIWI15,927103−31%

67▼1Lafayette County, WIWI17,47880−37%

68▼1Green Lake County, WIWI19,30569−45%

69Iron County, WIWI6,12758−45%

70Florence County, WIWI4,74849+188%

71Pepin County, WIWI7,51340−73%

72Menominee County, WIWI4,1994−83%

SHOWING 1–72 OF 72

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES