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 (2024 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. The median across all 72 is 10.1%. Biggest climber in the top 100 since 2020: Waushara County, WI, up 28 places to #31.

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WisconsinAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH SHAREVS 2010

01▲2Lafayette County, WIWI17,47815.2%−6.1 pts

02Iowa County, WIWI23,95115.0%−3.8 pts

03▼2Crawford County, WIWI15,91014.4%−2.1 pts

04Richland County, WIWI17,03613.8%−3.5 pts

05▲4Pierce County, WIWI43,51913.6%−1.2 pts

06▲2La Crosse County, WIWI121,33913.5%−0.4 pts

07▲10Grant County, WIWI52,44613.4%−3.0 pts

08▲2Walworth County, WIWI106,12713.4%−2.1 pts

09▼3Rock County, WIWI166,47213.0%−2.5 pts

10▲5Dane County, WIWI590,37513.0%−1.6 pts

11▲9Oneida County, WIWI38,13112.6%0.0 pts

12▼1Marquette County, WIWI15,92712.5%−2.6 pts

13▲5Columbia County, WIWI58,13212.4%−3.1 pts

14▼2Waukesha County, WIWI417,21012.3%−2.5 pts

15▲1Sauk County, WIWI66,65212.2%−2.2 pts

16▲7St. Croix County, WIWI98,27612.0%−1.3 pts

17▼12Juneau County, WIWI26,64912.0%−3.3 pts

18▲6Adams County, WIWI21,75212.0%−1.1 pts

19▲6Ozaukee County, WIWI94,34611.8%−1.5 pts

20▼6Green County, WIWI37,22711.5%0.0 pts

21▲1Vilas County, WIWI23,76111.4%−0.1 pts

22▲24Door County, WIWI30,61611.2%+0.6 pts

23▼4Jefferson County, WIWI86,50511.1%+0.5 pts

24▲5Washington County, WIWI139,23811.1%−0.6 pts

25▲10Douglas County, WIWI43,99011.0%−0.9 pts

26▲22Bayfield County, WIWI16,78710.9%+1.8 pts

27▲24Portage County, WIWI71,94310.9%−0.7 pts

28Kenosha County, WIWI168,44810.7%−2.4 pts

29▼16Washburn County, WIWI17,08710.7%−0.8 pts

30▲1Monroe County, WIWI46,57210.6%−1.8 pts

31▲28Waushara County, WIWI25,22310.6%−1.2 pts

32▲4Iron County, WIWI6,12710.4%+0.7 pts

33▼26Florence County, WIWI4,74810.4%−1.5 pts

34▼2Eau Claire County, WIWI109,03310.3%−1.1 pts

35▼2Dunn County, WIWI46,22310.2%−0.4 pts

36▲9Outagamie County, WIWI195,89410.1%−2.0 pts

37Winnebago County, WIWI174,21810.1%−0.4 pts

38▼8Fond du Lac County, WIWI104,66910.1%−2.3 pts

39▼5Polk County, WIWI45,8039.9%−0.3 pts

40▲1Sawyer County, WIWI18,8469.9%−1.0 pts

41▼3Jackson County, WIWI20,9999.9%−0.7 pts

42▼21Forest County, WIWI9,5749.8%−3.8 pts

43▼4Dodge County, WIWI89,0979.8%−1.1 pts

44▲6Green Lake County, WIWI19,3059.8%+1.0 pts

45▼5Racine County, WIWI198,9199.7%0.0 pts

46▼3Waupaca County, WIWI51,4619.6%−2.1 pts

47▲8Oconto County, WIWI40,1959.5%+0.2 pts

48▼4Brown County, WIWI275,8039.4%−1.0 pts

49▲12Manitowoc County, WIWI81,7109.4%+0.2 pts

50▲2Barron County, WIWI46,4849.3%−1.1 pts

51▼25Chippewa County, WIWI67,6149.3%−3.5 pts

52▼25Vernon County, WIWI31,4439.2%−2.4 pts

53▲9Ashland County, WIWI16,2039.2%−1.6 pts

54▲3Wood County, WIWI74,0609.1%−2.1 pts

55▼13Rusk County, WIWI14,1469.1%−1.3 pts

56▼7Burnett County, WIWI17,2238.9%−3.5 pts

57▲1Sheboygan County, WIWI118,0478.9%−0.1 pts

58▼11Price County, WIWI13,9888.6%+0.6 pts

59▼5Lincoln County, WIWI28,4038.6%−0.9 pts

60Calumet County, WIWI53,9828.5%−1.0 pts

61▼8Langlade County, WIWI19,5348.3%−5.5 pts

62▲4Marathon County, WIWI139,4327.9%−0.1 pts

63▲5Buffalo County, WIWI13,3187.8%+0.8 pts

64Milwaukee County, WIWI924,2167.6%−1.5 pts

65▲6Taylor County, WIWI20,1187.2%−1.1 pts

66▼3Pepin County, WIWI7,5137.1%−2.6 pts

67▼11Marinette County, WIWI42,5746.8%−3.4 pts

68▲2Clark County, WIWI35,0526.5%−1.2 pts

69▼4Trempealeau County, WIWI31,1716.4%−2.8 pts

70▼1Shawano County, WIWI41,5606.4%−1.2 pts

71▼4Kewaunee County, WIWI20,7586.4%+0.2 pts

72Menominee County, WIWI4,1991.1%−1.2 pts

SHOWING 1–72 OF 72

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