RANKING · 2024 ACS · 72 SHOWN OF 72

Highest Irish population share, Wisconsin counties

Wisconsin counties ranked by the share of all residents who are Irish ancestry (2023 American Community Survey). A concentration measure: Irish residents as a percentage of total population. 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

RANKPLACESTATEPOPIRISH SHAREVS 2000

01Lafayette County, WIWI17,47815.2%–

02Iowa County, WIWI23,95115.0%–

03Crawford County, WIWI15,91014.4%–

04Richland County, WIWI17,03613.8%–

05Pierce County, WIWI43,51913.6%–

06La Crosse County, WIWI121,33913.5%–

07Grant County, WIWI52,44613.4%–

08Walworth County, WIWI106,12713.4%–

09Rock County, WIWI166,47213.0%–

10Dane County, WIWI590,37513.0%–

11Oneida County, WIWI38,13112.6%–

12Marquette County, WIWI15,92712.5%–

13Columbia County, WIWI58,13212.4%–

14Waukesha County, WIWI417,21012.3%–

15Sauk County, WIWI66,65212.2%–

16St. Croix County, WIWI98,27612.0%–

17Juneau County, WIWI26,64912.0%–

18Adams County, WIWI21,75212.0%–

19Ozaukee County, WIWI94,34611.8%–

20Green County, WIWI37,22711.5%–

21Vilas County, WIWI23,76111.4%–

22Door County, WIWI30,61611.2%–

23Jefferson County, WIWI86,50511.1%–

24Washington County, WIWI139,23811.1%–

25Douglas County, WIWI43,99011.0%–

26Bayfield County, WIWI16,78710.9%–

27Portage County, WIWI71,94310.9%–

28Kenosha County, WIWI168,44810.7%–

29Washburn County, WIWI17,08710.7%–

30Monroe County, WIWI46,57210.6%–

31Waushara County, WIWI25,22310.6%–

32Iron County, WIWI6,12710.4%–

33Florence County, WIWI4,74810.4%–

34Eau Claire County, WIWI109,03310.3%–

35Dunn County, WIWI46,22310.2%–

36Outagamie County, WIWI195,89410.1%–

37Winnebago County, WIWI174,21810.1%–

38Fond du Lac County, WIWI104,66910.1%–

39Polk County, WIWI45,8039.9%–

40Sawyer County, WIWI18,8469.9%–

41Jackson County, WIWI20,9999.9%–

42Forest County, WIWI9,5749.8%–

43Dodge County, WIWI89,0979.8%–

44Green Lake County, WIWI19,3059.8%–

45Racine County, WIWI198,9199.7%–

46Waupaca County, WIWI51,4619.6%–

47Oconto County, WIWI40,1959.5%–

48Brown County, WIWI275,8039.4%–

49Manitowoc County, WIWI81,7109.4%–

50Barron County, WIWI46,4849.3%–

51Chippewa County, WIWI67,6149.3%–

52Vernon County, WIWI31,4439.2%–

53Ashland County, WIWI16,2039.2%–

54Wood County, WIWI74,0609.1%–

55Rusk County, WIWI14,1469.1%–

56Burnett County, WIWI17,2238.9%–

57Sheboygan County, WIWI118,0478.9%–

58Price County, WIWI13,9888.6%–

59Lincoln County, WIWI28,4038.6%–

60Calumet County, WIWI53,9828.5%–

61Langlade County, WIWI19,5348.3%–

62Marathon County, WIWI139,4327.9%–

63Buffalo County, WIWI13,3187.8%–

64Milwaukee County, WIWI924,2167.6%–

65Taylor County, WIWI20,1187.2%–

66Pepin County, WIWI7,5137.1%–

67Marinette County, WIWI42,5746.8%–

68Clark County, WIWI35,0526.5%–

69Trempealeau County, WIWI31,1716.4%–

70Shawano County, WIWI41,5606.4%–

71Kewaunee County, WIWI20,7586.4%–

72Menominee County, WIWI4,1991.1%–

SHOWING 1–72 OF 72

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