RANKING · 2020 CENSUS · 92 SHOWN OF 92

Largest Irish population, Indiana counties · 2020

Indiana 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 92 counties in Indiana that qualify, ranked against each other statewide.

IndianaAll 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

01Marion County, ININ992,19680,285–

02Lake County, ININ504,61249,949–

03Hamilton County, ININ387,03640,754–

04Allen County, ININ402,32935,761–

05St. Joseph County, ININ272,86131,461–

06Porter County, ININ176,04925,663–

07Tippecanoe County, ININ190,45620,445–

08Vanderburgh County, ININ181,99520,248–

09Monroe County, ININ143,34517,277–

10Johnson County, ININ174,26217,176–

11Elkhart County, ININ208,77416,395–

12Hendricks County, ININ193,51015,904–

13Clark County, ININ130,45115,682–

14LaPorte County, ININ111,29414,655–

15Delaware County, ININ113,10612,884–

16Madison County, ININ135,08812,331–

17Vigo County, ININ106,51211,867–

18Floyd County, ININ82,15310,528–

19Hancock County, ININ90,9699,261–

20Kosciusko County, ININ80,8928,692–

21Warrick County, ININ66,8038,285–

22Bartholomew County, ININ85,7297,844–

23Wayne County, ININ66,1697,670–

24Morgan County, ININ74,9677,661–

25Howard County, ININ83,9047,624–

26Dearborn County, ININ51,6096,868–

27Boone County, ININ80,6896,432–

28Montgomery County, ININ38,9545,723–

29Lawrence County, ININ45,5685,670–

30Grant County, ININ66,5245,281–

31Henry County, ININ49,1375,035–

32Jasper County, ININ33,8944,560–

33Noble County, ININ47,9374,539–

34Huntington County, ININ37,2244,316–

35Harrison County, ININ40,4374,199–

36DeKalb County, ININ44,5354,060–

37Jackson County, ININ47,3703,985–

38Shelby County, ININ45,8823,845–

39Steuben County, ININ34,7993,778–

40Wabash County, ININ30,7133,771–

41Knox County, ININ35,6523,742–

42Jefferson County, ININ33,2793,583–

43Greene County, ININ31,1653,531–

44Marshall County, ININ46,5993,499–

45Miami County, ININ34,4873,470–

46Gibson County, ININ33,0913,455–

47Dubois County, ININ44,0163,289–

48Putnam County, ININ37,8763,244–

49Daviess County, ININ34,2093,198–

50Whitley County, ININ35,0463,092–

51Cass County, ININ37,8362,982–

52Ripley County, ININ29,4342,964–

53Decatur County, ININ26,5762,878–

54Owen County, ININ21,8862,779–

55White County, ININ25,1642,776–

56Jennings County, ININ27,6222,768–

57Starke County, ININ23,4252,748–

58Posey County, ININ24,9882,699–

59Newton County, ININ14,1882,562–

60Perry County, ININ19,3892,531–

61Washington County, ININ28,3832,530–

62Fayette County, ININ23,5332,517–

63Scott County, ININ25,0532,426–

64Clinton County, ININ33,3222,361–

65Randolph County, ININ24,4382,343–

66Clay County, ININ26,4102,263–

67Franklin County, ININ23,2862,218–

68LaGrange County, ININ41,3052,183–

69Spencer County, ININ20,0612,147–

70Adams County, ININ36,6502,128–

71Fountain County, ININ17,0132,085–

72Brown County, ININ15,7772,073–

73Sullivan County, ININ20,8312,051–

74Rush County, ININ16,7672,045–

75Wells County, ININ28,8832,041–

76Orange County, ININ19,8341,873–

77Carroll County, ININ20,6551,863–

78Blackford County, ININ11,7301,798–

79Pulaski County, ININ12,4631,757–

80Fulton County, ININ20,0911,637–

81Parke County, ININ16,6421,625–

82Vermillion County, ININ15,4881,621–

83Jay County, ININ20,1181,607–

84Crawford County, ININ10,5091,600–

85Martin County, ININ9,8561,374–

86Tipton County, ININ15,3191,374–

87Pike County, ININ12,0031,356–

88Benton County, ININ8,8831,160–

89Switzerland County, ININ10,0371,112–

90Warren County, ININ8,474783–

91Ohio County, ININ5,994738–

92Union County, ININ6,863574–

SHOWING 1–92 OF 92

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