RANKING · 2020 CENSUS · 72 SHOWN OF 72

Largest Czech population, Wisconsin counties · 2020

Wisconsin counties ranked by the number of residents who are Czech ancestry, from the 2023 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.

WisconsinAll states All rankings

SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPCZECH POPULATIONVS 2000

01Dane County, WIWI590,3757,184–

02Milwaukee County, WIWI924,2167,109–

03Brown County, WIWI275,8035,564–

04Manitowoc County, WIWI81,7105,064–

05Waukesha County, WIWI417,2104,681–

06Racine County, WIWI198,9193,661–

07Marathon County, WIWI139,4323,132–

08La Crosse County, WIWI121,3392,898–

09Kewaunee County, WIWI20,7582,073–

10Outagamie County, WIWI195,8942,049–

11Winnebago County, WIWI174,2181,826–

12St. Croix County, WIWI98,2761,567–

13Rock County, WIWI166,4721,492–

14Chippewa County, WIWI67,6141,470–

15Washington County, WIWI139,2381,427–

16Walworth County, WIWI106,1271,386–

17Langlade County, WIWI19,5341,381–

18Kenosha County, WIWI168,4481,340–

19Wood County, WIWI74,0601,263–

20Barron County, WIWI46,4841,209–

21Grant County, WIWI52,4461,151–

22Eau Claire County, WIWI109,0331,122–

23Portage County, WIWI71,9431,083–

24Pierce County, WIWI43,5191,075–

25Ozaukee County, WIWI94,346999–

26Fond du Lac County, WIWI104,669883–

27Vernon County, WIWI31,443881–

28Oconto County, WIWI40,195844–

29Sauk County, WIWI66,652821–

30Sheboygan County, WIWI118,047814–

31Crawford County, WIWI15,910761–

32Oneida County, WIWI38,131704–

33Shawano County, WIWI41,560695–

34Price County, WIWI13,988667–

35Iowa County, WIWI23,951658–

36Calumet County, WIWI53,982654–

37Columbia County, WIWI58,132650–

38Marinette County, WIWI42,574628–

39Polk County, WIWI45,803613–

40Dunn County, WIWI46,223578–

41Monroe County, WIWI46,572567–

42Jefferson County, WIWI86,505563–

43Door County, WIWI30,616548–

44Richland County, WIWI17,036545–

45Juneau County, WIWI26,649535–

46Dodge County, WIWI89,097522–

47Douglas County, WIWI43,990461–

48Taylor County, WIWI20,118432–

49Adams County, WIWI21,752414–

50Sawyer County, WIWI18,846411–

51Rusk County, WIWI14,146410–

52Waupaca County, WIWI51,461405–

53Vilas County, WIWI23,761392–

54Ashland County, WIWI16,203391–

55Clark County, WIWI35,052378–

56Jackson County, WIWI20,999368–

57Trempealeau County, WIWI31,171360–

58Waushara County, WIWI25,223309–

59Bayfield County, WIWI16,787302–

60Washburn County, WIWI17,087276–

61Lincoln County, WIWI28,403238–

62Burnett County, WIWI17,223219–

63Green County, WIWI37,227205–

64Forest County, WIWI9,574179–

65Marquette County, WIWI15,927149–

66Lafayette County, WIWI17,478147–

67Green Lake County, WIWI19,305115–

68Buffalo County, WIWI13,31894–

69Iron County, WIWI6,12783–

70Florence County, WIWI4,74870–

71Pepin County, WIWI7,51350–

72Menominee County, WIWI4,19910–

SHOWING 1–72 OF 72

Download CSV (full list, 72 rows)

UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES