RANKING · 2010 CENSUS · 72 SHOWN OF 72

Largest Irish population, Wisconsin counties · 2010

Wisconsin counties ranked by the number of residents who are Irish 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

RANKPLACESTATEPOPIRISH POPULATIONVS 2000

01Milwaukee County, WIWI924,21685,701–

02Dane County, WIWI590,37569,879–

03Waukesha County, WIWI417,21056,830–

04Brown County, WIWI275,80325,534–

05Rock County, WIWI166,47224,843–

06Kenosha County, WIWI168,44821,584–

07Outagamie County, WIWI195,89421,244–

08Racine County, WIWI198,91918,977–

09Winnebago County, WIWI174,21817,398–

10Walworth County, WIWI106,12715,750–

11La Crosse County, WIWI121,33915,700–

12Washington County, WIWI139,23815,210–

13Fond du Lac County, WIWI104,66912,514–

14Ozaukee County, WIWI94,34611,493–

15Eau Claire County, WIWI109,03311,084–

16St. Croix County, WIWI98,27611,043–

17Marathon County, WIWI139,43210,541–

18Sheboygan County, WIWI118,04710,326–

19Dodge County, WIWI89,0979,696–

20Sauk County, WIWI66,6528,782–

21Jefferson County, WIWI86,5058,772–

22Columbia County, WIWI58,1328,766–

23Grant County, WIWI52,4468,360–

24Wood County, WIWI74,0608,352–

25Portage County, WIWI71,9438,043–

26Chippewa County, WIWI67,6147,849–

27Manitowoc County, WIWI81,7107,492–

28Waupaca County, WIWI51,4616,156–

29Pierce County, WIWI43,5196,017–

30Monroe County, WIWI46,5725,454–

31Douglas County, WIWI43,9905,202–

32Barron County, WIWI46,4844,783–

33Oneida County, WIWI38,1314,576–

34Dunn County, WIWI46,2234,567–

35Calumet County, WIWI53,9824,522–

36Polk County, WIWI45,8034,522–

37Iowa County, WIWI23,9514,449–

38Marinette County, WIWI42,5744,295–

39Green County, WIWI37,2274,207–

40Juneau County, WIWI26,6494,094–

41Lafayette County, WIWI17,4783,563–

42Oconto County, WIWI40,1953,515–

43Vernon County, WIWI31,4433,410–

44Shawano County, WIWI41,5603,161–

45Richland County, WIWI17,0363,154–

46Door County, WIWI30,6162,957–

47Waushara County, WIWI25,2232,897–

48Langlade County, WIWI19,5342,795–

49Crawford County, WIWI15,9102,774–

50Lincoln County, WIWI28,4032,746–

51Adams County, WIWI21,7522,739–

52Clark County, WIWI35,0522,655–

53Trempealeau County, WIWI31,1712,615–

54Vilas County, WIWI23,7612,501–

55Marquette County, WIWI15,9272,329–

56Jackson County, WIWI20,9992,132–

57Burnett County, WIWI17,2231,951–

58Washburn County, WIWI17,0871,845–

59Sawyer County, WIWI18,8461,815–

60Ashland County, WIWI16,2031,750–

61Taylor County, WIWI20,1181,714–

62Green Lake County, WIWI19,3051,673–

63Rusk County, WIWI14,1461,544–

64Bayfield County, WIWI16,7871,383–

65Forest County, WIWI9,5741,296–

66Kewaunee County, WIWI20,7581,273–

67Price County, WIWI13,9881,159–

68Buffalo County, WIWI13,318968–

69Pepin County, WIWI7,513729–

70Iron County, WIWI6,127589–

71Florence County, WIWI4,748544–

72Menominee County, WIWI4,199101–

SHOWING 1–72 OF 72

Download CSV (full list, 72 rows)

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