RANKING · 2024 ACS · 92 SHOWN OF 92

Highest Irish population share, Indiana counties

Indiana 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 92 counties in Indiana that qualify, ranked against each other statewide. The median across all 92 is 10.3%. Biggest climber in the top 100 since 2020: Sullivan County, IN, up 36 places to #20.

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IndianaAll states All rankings

SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH SHAREVS 2010

01Newton County, ININ14,18817.0%+0.1 pts

02▲11Benton County, ININ8,88315.9%−1.0 pts

03▲1Blackford County, ININ11,73015.9%−0.8 pts

04▼2Porter County, ININ176,04914.9%−3.7 pts

05▲12Warrick County, ININ66,80314.3%−1.1 pts

06▲24White County, ININ25,16413.7%+0.4 pts

07▲3Floyd County, ININ82,15313.5%−1.6 pts

08▼1Dearborn County, ININ51,60913.4%−5.8 pts

09▲2Martin County, ININ9,85613.3%−5.9 pts

10▲2Clark County, ININ130,45113.3%−1.7 pts

11▼3Brown County, ININ15,77713.2%+0.1 pts

12▲3LaPorte County, ININ111,29412.8%−2.5 pts

13▲6Ohio County, ININ5,99412.7%+0.1 pts

14▲8Rush County, ININ16,76712.6%+0.6 pts

15▲1Perry County, ININ19,38912.6%−1.8 pts

16▲10Huntington County, ININ37,22412.5%−2.4 pts

17▲8Starke County, ININ23,42512.5%−3.8 pts

18▲34Gibson County, ININ33,09112.4%−0.7 pts

19▼10Jasper County, ININ33,89412.2%−4.3 pts

20▲36Sullivan County, ININ20,83112.2%+1.9 pts

21▼1Lawrence County, ININ45,56812.2%−2.4 pts

22▲6St. Joseph County, ININ272,86112.1%−3.3 pts

23▲18Fayette County, ININ23,53312.1%+0.2 pts

24▼6Fountain County, ININ17,01311.8%−2.6 pts

25▲9Vigo County, ININ106,51211.8%−0.4 pts

26▼21Montgomery County, ININ38,95411.8%−2.7 pts

27▲6Jefferson County, ININ33,27911.7%−1.3 pts

28▲20Harrison County, ININ40,43711.6%−1.2 pts

29▼2Monroe County, ININ143,34511.6%−1.9 pts

30▼9Hamilton County, ININ387,03611.4%−3.2 pts

31▲24Jennings County, ININ27,62211.2%−5.1 pts

32▼3Wayne County, ININ66,16911.1%−0.7 pts

33▲29Orange County, ININ19,83411.1%−1.3 pts

34▼28Pulaski County, ININ12,46311.0%−1.2 pts

35▲3Pike County, ININ12,00310.7%−5.2 pts

36▲11Henry County, ININ49,13710.7%−1.2 pts

37Greene County, ININ31,16510.6%−6.1 pts

38▼15Hancock County, ININ90,96910.6%−3.3 pts

39▲3Decatur County, ININ26,57610.6%+0.4 pts

40▼4Kosciusko County, ININ80,89210.6%−1.0 pts

41▼1Steuben County, ININ34,79910.5%+0.1 pts

42▼11Delaware County, ININ113,10610.5%−3.7 pts

43▼11Vanderburgh County, ININ181,99510.5%−1.2 pts

44▲19Hendricks County, ININ193,51010.5%−4.7 pts

45▼2Posey County, ININ24,98810.5%−1.1 pts

46▲21Madison County, ININ135,08810.3%−1.2 pts

47▲18Warren County, ININ8,47410.3%−0.7 pts

48▼3Spencer County, ININ20,06110.2%−6.2 pts

49▼14Johnson County, ININ174,26210.1%−5.5 pts

50▲8Miami County, ININ34,48710.1%−1.9 pts

51▲23Tipton County, ININ15,31910.0%+0.4 pts

52▼28Wabash County, ININ30,71310.0%0.0 pts

53▲6Boone County, ININ80,68910.0%−4.1 pts

54▲21Washington County, ININ28,38310.0%−3.6 pts

55▼11Tippecanoe County, ININ190,4569.9%−4.0 pts

56▲26Union County, ININ6,8639.9%−6.2 pts

57▲16Whitley County, ININ35,0469.9%−2.7 pts

58▼7Lake County, ININ504,6129.8%−1.3 pts

59▲26Cass County, ININ37,8369.5%−2.3 pts

60▲26Jay County, ININ20,1189.5%−2.1 pts

61▲9DeKalb County, ININ44,5359.4%−1.3 pts

62▲21Grant County, ININ66,5249.4%−0.6 pts

63▲18Fulton County, ININ20,0919.4%−1.5 pts

64▼61Crawford County, ININ10,5099.4%−8.0 pts

65▲3Randolph County, ININ24,4389.3%−4.6 pts

66Allen County, ININ402,3299.2%−2.2 pts

67▼21Vermillion County, ININ15,4889.2%−1.8 pts

68▼18Switzerland County, ININ10,0379.1%−4.1 pts

69▲2Carroll County, ININ20,6559.1%−3.6 pts

70▲6Jackson County, ININ47,3708.9%−3.9 pts

71▲17Marshall County, ININ46,5998.9%−2.3 pts

72▼18Knox County, ININ35,6528.9%−4.1 pts

73▼16Franklin County, ININ23,2868.7%−4.4 pts

74▲13Dubois County, ININ44,0168.6%+0.5 pts

75▲3Shelby County, ININ45,8828.5%−3.6 pts

76▲3Clay County, ININ26,4108.5%−4.3 pts

77▼5Howard County, ININ83,9048.4%−1.7 pts

78▲12Wells County, ININ28,8838.4%−2.4 pts

79▼30Ripley County, ININ29,4348.4%−5.6 pts

80▼41Morgan County, ININ74,9678.1%−7.5 pts

81▼20Parke County, ININ16,6428.0%−2.6 pts

82▼2Marion County, ININ992,1968.0%−3.9 pts

83▼19Noble County, ININ47,9377.9%−1.9 pts

84▼70Owen County, ININ21,8867.9%−12.9 pts

85▼25Daviess County, ININ34,2097.8%−5.3 pts

86▼17Bartholomew County, ININ85,7297.6%−4.6 pts

87▼34Scott County, ININ25,0537.5%−4.3 pts

88▼11Putnam County, ININ37,8767.4%−5.3 pts

89Clinton County, ININ33,3227.3%−3.0 pts

90▲1Adams County, ININ36,6506.8%−1.4 pts

91▼7Elkhart County, ININ208,7746.1%−4.1 pts

92LaGrange County, ININ41,3054.5%−2.0 pts

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