RANKING · 2010 CENSUS · 88 SHOWN OF 88

Largest Irish population, Ohio counties · 2010

Ohio counties ranked by the number of residents who are Irish ancestry, from the 2010 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 88 counties in Ohio that qualify, ranked against each other statewide. The median across all 88 is 8,076.

Irish Americans: full group profile →

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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 POPULATIONVS –

01Cuyahoga County, OHOH1,232,925168,679–

02Franklin County, OHOH1,361,536164,857–

03Hamilton County, OHOH838,418117,831–

04Summit County, OHOH538,37683,267–

05Montgomery County, OHOH539,59868,965–

06Lucas County, OHOH423,34758,662–

07Stark County, OHOH373,77158,384–

08Lorain County, OHOH323,21950,160–

09Butler County, OHOH400,12849,474–

10Lake County, OHOH232,21743,284–

11Mahoning County, OHOH224,70640,063–

12Clermont County, OHOH216,97735,329–

13Medina County, OHOH185,02531,210–

14Trumbull County, OHOH198,97230,396–

15Warren County, OHOH257,18129,249–

16Portage County, OHOH163,40427,355–

17Delaware County, OHOH242,03227,048–

18Licking County, OHOH185,56426,219–

19Fairfield County, OHOH169,75223,293–

20Clark County, OHOH135,34020,947–

21Greene County, OHOH174,32220,815–

22Columbiana County, OHOH99,37719,269–

23Wood County, OHOH134,17617,993–

24Richland County, OHOH124,89316,794–

25Ashtabula County, OHOH96,71316,053–

26Geauga County, OHOH95,67616,018–

27Tuscarawas County, OHOH92,37314,781–

28Wayne County, OHOH116,75814,717–

29Miami County, OHOH112,63413,801–

30Allen County, OHOH100,88113,434–

31Muskingum County, OHOH87,01413,282–

32Belmont County, OHOH64,43412,599–

33Jefferson County, OHOH63,59711,989–

34Scioto County, OHOH71,36511,874–

35Erie County, OHOH73,29611,783–

36Ross County, OHOH76,42911,779–

37Washington County, OHOH58,38910,380–

38Marion County, OHOH65,11510,108–

39Athens County, OHOH63,1979,043–

40Huron County, OHOH58,2508,699–

41Knox County, OHOH64,0028,654–

42Hancock County, OHOH75,0348,241–

43Pickaway County, OHOH62,9788,240–

44Lawrence County, OHOH55,7108,076–

45Union County, OHOH73,4467,737–

46Sandusky County, OHOH58,6557,388–

47Madison County, OHOH46,9857,075–

48Clinton County, OHOH42,3016,521–

49Highland County, OHOH43,8236,507–

50Crawford County, OHOH41,8966,334–

51Brown County, OHOH44,3976,325–

52Preble County, OHOH40,6646,223–

53Logan County, OHOH46,3026,191–

54Guernsey County, OHOH38,3796,133–

55Champaign County, OHOH38,8205,983–

56Seneca County, OHOH54,5225,965–

57Ashland County, OHOH52,5235,957–

58Auglaize County, OHOH45,9095,807–

59Darke County, OHOH51,5205,622–

60Shelby County, OHOH48,0655,437–

61Perry County, OHOH35,9185,323–

62Coshocton County, OHOH37,1885,257–

63Fulton County, OHOH41,8535,080–

64Morrow County, OHOH36,3055,018–

65Ottawa County, OHOH39,4814,959–

66Defiance County, OHOH38,2924,899–

67Hardin County, OHOH30,0724,841–

68Gallia County, OHOH29,0724,837–

69Williams County, OHOH36,5494,570–

70Adams County, OHOH27,8654,362–

71Pike County, OHOH27,0614,252–

72Carroll County, OHOH26,4754,182–

73Hocking County, OHOH27,5124,122–

74Jackson County, OHOH32,8173,855–

75Van Wert County, OHOH29,0133,589–

76Meigs County, OHOH21,5873,391–

77Mercer County, OHOH42,7373,384–

78Fayette County, OHOH28,5523,066–

79Henry County, OHOH27,5983,029–

80Holmes County, OHOH44,9702,767–

81Putnam County, OHOH34,3802,716–

82Wyandot County, OHOH21,5672,534–

83Harrison County, OHOH14,0702,457–

84Monroe County, OHOH12,9942,141–

85Paulding County, OHOH18,7272,062–

86Morgan County, OHOH13,6261,926–

87Vinton County, OHOH12,6451,918–

88Noble County, OHOH14,2761,910–

SHOWING 1–88 OF 88

Download CSV (full list, 88 rows)

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS