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 (2024 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. The median across all 88 is 12.2%. Biggest climber in the top 100 since 2020: Adams County, OH, up 68 places to #15.

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SAME RANKING BYCities States Metros

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH SHAREVS 2010

01Lake County, OHOH232,21717.3%−1.6 pts

02▲5Columbiana County, OHOH99,37716.8%−0.9 pts

03▲23Guernsey County, OHOH38,37916.0%+0.8 pts

04Medina County, OHOH185,02515.8%−2.5 pts

05▲11Athens County, OHOH63,19715.4%+1.4 pts

06▼3Jefferson County, OHOH63,59715.4%−1.8 pts

07▲21Geauga County, OHOH95,67615.2%−2.0 pts

08▼2Madison County, OHOH46,98514.8%−1.7 pts

09▼1Delaware County, OHOH242,03214.6%−1.7 pts

10▲13Erie County, OHOH73,29614.5%−0.7 pts

11▲31Pickaway County, OHOH62,97814.4%−0.6 pts

12▲20Ashtabula County, OHOH96,71314.3%−1.5 pts

13▲24Clinton County, OHOH42,30114.0%−1.3 pts

14▼5Champaign County, OHOH38,82014.0%−0.9 pts

15▲68Adams County, OHOH27,86514.0%−1.3 pts

16▼3Mahoning County, OHOH224,70613.9%−2.6 pts

17▲4Clermont County, OHOH216,97713.8%−4.3 pts

18▼16Portage County, OHOH163,40413.7%−3.4 pts

19▼2Lorain County, OHOH323,21913.7%−3.0 pts

20▲11Carroll County, OHOH26,47513.6%−0.8 pts

21▲14Washington County, OHOH58,38913.6%−3.1 pts

22▼12Belmont County, OHOH64,43413.6%−4.3 pts

23▲49Fayette County, OHOH28,55213.5%+2.9 pts

24▲9Summit County, OHOH538,37613.4%−2.0 pts

25▼6Coshocton County, OHOH37,18813.3%−0.9 pts

26▼21Perry County, OHOH35,91813.1%−1.7 pts

27▼15Licking County, OHOH185,56413.1%−2.9 pts

28▲1Greene County, OHOH174,32213.1%+0.1 pts

29▼4Union County, OHOH73,44613.1%−2.2 pts

30▲32Lawrence County, OHOH55,71013.1%+0.2 pts

31▼11Stark County, OHOH373,77113.0%−2.5 pts

32▲12Ottawa County, OHOH39,48113.0%+1.1 pts

33▼9Clark County, OHOH135,34012.9%−2.1 pts

34▲5Logan County, OHOH46,30212.7%−0.8 pts

35▲11Scioto County, OHOH71,36512.5%−2.5 pts

36▲40Morrow County, OHOH36,30512.5%−1.9 pts

37▼23Knox County, OHOH64,00212.5%−1.9 pts

38▲9Gallia County, OHOH29,07212.4%−3.2 pts

39▲25Marion County, OHOH65,11512.4%−2.8 pts

40▼25Meigs County, OHOH21,58712.3%−2.0 pts

41▼3Brown County, OHOH44,39712.3%−1.9 pts

42▼24Warren County, OHOH257,18112.2%−1.8 pts

43▼16Hocking County, OHOH27,51212.2%−1.9 pts

44▲9Highland County, OHOH43,82312.2%−2.7 pts

45▼9Hamilton County, OHOH838,41812.1%−2.6 pts

46▼35Fulton County, OHOH41,85312.1%+0.2 pts

47▲4Miami County, OHOH112,63412.1%−1.4 pts

48▼3Tuscarawas County, OHOH92,37312.0%−3.9 pts

49▲8Butler County, OHOH400,12812.0%−1.6 pts

50▲23Noble County, OHOH14,27612.0%−1.0 pts

51▲27Jackson County, OHOH32,81711.9%+0.2 pts

52▼22Fairfield County, OHOH169,75211.8%−4.4 pts

53▲12Montgomery County, OHOH539,59811.8%−1.0 pts

54▼5Harrison County, OHOH14,07011.7%−3.7 pts

55Cuyahoga County, OHOH1,232,92511.7%−1.3 pts

56▼2Morgan County, OHOH13,62611.6%−1.1 pts

57▼23Crawford County, OHOH41,89611.5%−2.8 pts

58▼6Allen County, OHOH100,88111.5%−1.1 pts

59▼37Wood County, OHOH134,17611.4%−2.9 pts

60▼19Ross County, OHOH76,42911.4%−3.8 pts

61▼21Muskingum County, OHOH87,01411.3%−4.2 pts

62▲12Trumbull County, OHOH198,97211.3%−3.0 pts

63▼5Lucas County, OHOH423,34711.2%−2.0 pts

64▼8Franklin County, OHOH1,361,53611.2%−3.2 pts

65▲4Preble County, OHOH40,66411.1%−3.5 pts

66▼6Ashland County, OHOH52,52311.0%−0.2 pts

67▲13Richland County, OHOH124,89310.9%−2.4 pts

68▼25Huron County, OHOH58,25010.9%−3.7 pts

69▼19Seneca County, OHOH54,52210.8%+0.3 pts

70▼2Auglaize County, OHOH45,90910.7%−2.0 pts

71▼4Vinton County, OHOH12,64510.5%−3.7 pts

72▼11Sandusky County, OHOH58,65510.5%−1.6 pts

73▼7Hardin County, OHOH30,07210.5%−4.6 pts

74▼26Monroe County, OHOH12,99410.5%−4.1 pts

75▼12Williams County, OHOH36,54910.3%−1.7 pts

76▼17Wyandot County, OHOH21,56710.2%−1.0 pts

77▲7Darke County, OHOH51,52010.1%−0.5 pts

78▲1Wayne County, OHOH116,75810.0%−2.9 pts

79▲2Shelby County, OHOH48,0659.6%−1.4 pts

80▼10Pike County, OHOH27,0619.6%−5.2 pts

81▼10Defiance County, OHOH38,2929.1%−3.4 pts

82▼7Henry County, OHOH27,5989.1%−1.5 pts

83▼6Hancock County, OHOH75,0349.0%−2.0 pts

84▼2Paulding County, OHOH18,7278.7%−1.8 pts

85Mercer County, OHOH42,7378.5%+0.2 pts

86Van Wert County, OHOH29,0136.9%−5.4 pts

87Putnam County, OHOH34,3806.8%−1.1 pts

88Holmes County, OHOH44,9703.8%−2.8 pts

SHOWING 1–88 OF 88

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