RANKING · 2024 ACS · 88 SHOWN OF 88

Highest Irish population share, Ohio counties

Ohio 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 88 counties in Ohio that qualify, ranked against each other statewide.

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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

01Lake County, OHOH232,21717.3%–

02Columbiana County, OHOH99,37716.8%–

03Guernsey County, OHOH38,37916.0%–

04Medina County, OHOH185,02515.8%–

05Athens County, OHOH63,19715.4%–

06Jefferson County, OHOH63,59715.4%–

07Geauga County, OHOH95,67615.2%–

08Madison County, OHOH46,98514.8%–

09Delaware County, OHOH242,03214.6%–

10Erie County, OHOH73,29614.5%–

11Pickaway County, OHOH62,97814.4%–

12Ashtabula County, OHOH96,71314.3%–

13Clinton County, OHOH42,30114.0%–

14Champaign County, OHOH38,82014.0%–

15Adams County, OHOH27,86514.0%–

16Mahoning County, OHOH224,70613.9%–

17Clermont County, OHOH216,97713.8%–

18Portage County, OHOH163,40413.7%–

19Lorain County, OHOH323,21913.7%–

20Carroll County, OHOH26,47513.6%–

21Washington County, OHOH58,38913.6%–

22Belmont County, OHOH64,43413.6%–

23Fayette County, OHOH28,55213.5%–

24Summit County, OHOH538,37613.4%–

25Coshocton County, OHOH37,18813.3%–

26Perry County, OHOH35,91813.1%–

27Licking County, OHOH185,56413.1%–

28Greene County, OHOH174,32213.1%–

29Union County, OHOH73,44613.1%–

30Lawrence County, OHOH55,71013.1%–

31Stark County, OHOH373,77113.0%–

32Ottawa County, OHOH39,48113.0%–

33Clark County, OHOH135,34012.9%–

34Logan County, OHOH46,30212.7%–

35Scioto County, OHOH71,36512.5%–

36Morrow County, OHOH36,30512.5%–

37Knox County, OHOH64,00212.5%–

38Gallia County, OHOH29,07212.4%–

39Marion County, OHOH65,11512.4%–

40Meigs County, OHOH21,58712.3%–

41Brown County, OHOH44,39712.3%–

42Warren County, OHOH257,18112.2%–

43Hocking County, OHOH27,51212.2%–

44Highland County, OHOH43,82312.2%–

45Hamilton County, OHOH838,41812.1%–

46Fulton County, OHOH41,85312.1%–

47Miami County, OHOH112,63412.1%–

48Tuscarawas County, OHOH92,37312.0%–

49Butler County, OHOH400,12812.0%–

50Noble County, OHOH14,27612.0%–

51Jackson County, OHOH32,81711.9%–

52Fairfield County, OHOH169,75211.8%–

53Montgomery County, OHOH539,59811.8%–

54Harrison County, OHOH14,07011.7%–

55Cuyahoga County, OHOH1,232,92511.7%–

56Morgan County, OHOH13,62611.6%–

57Crawford County, OHOH41,89611.5%–

58Allen County, OHOH100,88111.5%–

59Wood County, OHOH134,17611.4%–

60Ross County, OHOH76,42911.4%–

61Muskingum County, OHOH87,01411.3%–

62Trumbull County, OHOH198,97211.3%–

63Lucas County, OHOH423,34711.2%–

64Franklin County, OHOH1,361,53611.2%–

65Preble County, OHOH40,66411.1%–

66Ashland County, OHOH52,52311.0%–

67Richland County, OHOH124,89310.9%–

68Huron County, OHOH58,25010.9%–

69Seneca County, OHOH54,52210.8%–

70Auglaize County, OHOH45,90910.7%–

71Vinton County, OHOH12,64510.5%–

72Sandusky County, OHOH58,65510.5%–

73Hardin County, OHOH30,07210.5%–

74Monroe County, OHOH12,99410.5%–

75Williams County, OHOH36,54910.3%–

76Wyandot County, OHOH21,56710.2%–

77Darke County, OHOH51,52010.1%–

78Wayne County, OHOH116,75810.0%–

79Shelby County, OHOH48,0659.6%–

80Pike County, OHOH27,0619.6%–

81Defiance County, OHOH38,2929.1%–

82Henry County, OHOH27,5989.1%–

83Hancock County, OHOH75,0349.0%–

84Paulding County, OHOH18,7278.7%–

85Mercer County, OHOH42,7378.5%–

86Van Wert County, OHOH29,0136.9%–

87Putnam County, OHOH34,3806.8%–

88Holmes County, OHOH44,9703.8%–

SHOWING 1–88 OF 88

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