RANKING · 2024 ACS · 72 SHOWN OF 72

Largest Irish population, Wisconsin counties

Wisconsin counties ranked by the number of residents who are Irish 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.

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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

RANKPLACESTATEPOPIRISH POPULATIONVS 2010

01Dane County, WIWI590,37574,465+7%

02Milwaukee County, WIWI924,21670,714−17%

03Waukesha County, WIWI417,21050,482−11%

04Brown County, WIWI275,80325,513−0%

05Rock County, WIWI166,47221,418−14%

06Outagamie County, WIWI195,89419,533−8%

07Racine County, WIWI198,91919,207+1%

08Kenosha County, WIWI168,44818,021−17%

09Winnebago County, WIWI174,21817,344−0%

10La Crosse County, WIWI121,33916,264+4%

11Washington County, WIWI139,23815,271+0%

12Walworth County, WIWI106,12714,109−10%

13St. Croix County, WIWI98,27611,564+5%

14Eau Claire County, WIWI109,03311,004−1%

15Ozaukee County, WIWI94,34610,996−4%

16Marathon County, WIWI139,43210,892+3%

17Fond du Lac County, WIWI104,66910,513−16%

18Sheboygan County, WIWI118,04710,467+1%

19Jefferson County, WIWI86,5059,535+9%

20Dodge County, WIWI89,0978,704−10%

21Sauk County, WIWI66,6528,036−8%

22Portage County, WIWI71,9437,690−4%

23Manitowoc County, WIWI81,7107,623+2%

24Columbia County, WIWI58,1327,251−17%

25Grant County, WIWI52,4466,959−17%

26Wood County, WIWI74,0606,740−19%

27Chippewa County, WIWI67,6146,199−21%

28Pierce County, WIWI43,5195,810−3%

29Waupaca County, WIWI51,4614,958−19%

30Monroe County, WIWI46,5724,885−10%

31Douglas County, WIWI43,9904,856−7%

32Oneida County, WIWI38,1314,811+5%

33Dunn County, WIWI46,2234,623+1%

34Polk County, WIWI45,8034,530+0%

35Calumet County, WIWI53,9824,479−1%

36Barron County, WIWI46,4844,374−9%

37Green County, WIWI37,2274,264+1%

38Oconto County, WIWI40,1953,755+7%

39Iowa County, WIWI23,9513,578−20%

40Door County, WIWI30,6163,415+15%

41Juneau County, WIWI26,6493,206−22%

42Vernon County, WIWI31,4432,858−16%

43Marinette County, WIWI42,5742,851−34%

44Vilas County, WIWI23,7612,686+7%

45Waushara County, WIWI25,2232,626−9%

46Shawano County, WIWI41,5602,619−17%

47Lafayette County, WIWI17,4782,573−28%

48Adams County, WIWI21,7522,526−8%

49Lincoln County, WIWI28,4032,439−11%

50Richland County, WIWI17,0362,377−25%

51Crawford County, WIWI15,9102,313−17%

52Clark County, WIWI35,0522,251−15%

53Jackson County, WIWI20,9992,068−3%

54Trempealeau County, WIWI31,1711,978−24%

55Marquette County, WIWI15,9271,971−15%

56Green Lake County, WIWI19,3051,884+13%

57Sawyer County, WIWI18,8461,825+1%

58Bayfield County, WIWI16,7871,814+31%

59Washburn County, WIWI17,0871,801−2%

60Langlade County, WIWI19,5341,621−42%

61Burnett County, WIWI17,2231,505−23%

62Ashland County, WIWI16,2031,476−16%

63Taylor County, WIWI20,1181,449−15%

64Kewaunee County, WIWI20,7581,316+3%

65Rusk County, WIWI14,1461,284−17%

66Price County, WIWI13,9881,210+4%

67Buffalo County, WIWI13,3181,045+8%

68Forest County, WIWI9,574919−29%

69Iron County, WIWI6,127648+10%

70Pepin County, WIWI7,513526−28%

71Florence County, WIWI4,748481−12%

72Menominee County, WIWI4,19948−52%

SHOWING 1–72 OF 72

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES