RANKING · 2024 ACS · 88 SHOWN OF 88

Most racially diverse, Ohio counties

Ohio counties ranked by the CensusEasy Diversity Score (0 to 100), the chance two random residents are of a different race or ethnicity (2024 ACS). This list covers the 88 counties in Ohio that qualify, ranked against each other statewide. The median across all 88 is 22.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

RANKPLACESTATEPOPDIVERSITY SCOREVS 1990

01Franklin County, OHOH1,361,53675+88%

02Cuyahoga County, OHOH1,232,92574+39%

03Hamilton County, OHOH838,41868+53%

04Lucas County, OHOH423,34765+60%

05Montgomery County, OHOH539,59862+54%

06Summit County, OHOH538,37655+82%

07Mahoning County, OHOH224,70654+45%

08Butler County, OHOH400,12853+279%

09Lorain County, OHOH323,21951+63%

10Delaware County, OHOH242,03245+458%

11Allen County, OHOH100,88145+60%

12Erie County, OHOH73,29644+95%

13Fairfield County, OHOH169,75242+664%

14Greene County, OHOH174,32241+81%

15Warren County, OHOH257,18140+364%

16Clark County, OHOH135,34040+74%

17Sandusky County, OHOH58,65539+100%

18Stark County, OHOH373,77136+92%

19Richland County, OHOH124,89336+69%

20Lake County, OHOH232,21735+366%

21Union County, OHOH73,44635+205%

22Trumbull County, OHOH198,97234+88%

23Licking County, OHOH185,56434+412%

24Defiance County, OHOH38,29234+66%

25Wood County, OHOH134,17633+214%

26Portage County, OHOH163,40432+200%

27Madison County, OHOH46,98531+54%

28Marion County, OHOH65,11531+124%

29Ashtabula County, OHOH96,71330+146%

30Hancock County, OHOH75,03430+198%

31Fulton County, OHOH41,85329+133%

32Huron County, OHOH58,25028+269%

33Seneca County, OHOH54,52228+113%

34Henry County, OHOH27,59828+128%

35Jefferson County, OHOH63,59727+73%

36Ross County, OHOH76,42927+47%

37Athens County, OHOH63,19726+78%

38Miami County, OHOH112,63424+198%

39Paulding County, OHOH18,72723+156%

40Morgan County, OHOH13,62623+97%

41Ottawa County, OHOH39,48123+86%

42Muskingum County, OHOH87,01422+86%

43Pickaway County, OHOH62,97822+29%

44Clermont County, OHOH216,97722+362%

45Belmont County, OHOH64,43422+275%

46Fayette County, OHOH28,55222+158%

47Williams County, OHOH36,54921+249%

48Putnam County, OHOH34,38021+117%

49Medina County, OHOH185,02521+317%

50Logan County, OHOH46,30220+183%

51Shelby County, OHOH48,06520+233%

52Van Wert County, OHOH29,01320+205%

53Clinton County, OHOH42,30120+201%

54Champaign County, OHOH38,82020+117%

55Tuscarawas County, OHOH92,37319+371%

56Scioto County, OHOH71,36519+84%

57Columbiana County, OHOH99,37719+266%

58Noble County, OHOH14,27619+1933%

59Wayne County, OHOH116,75818+170%

60Gallia County, OHOH29,07218+84%

61Hardin County, OHOH30,07217+322%

62Geauga County, OHOH95,67617+229%

63Knox County, OHOH64,00217+285%

64Guernsey County, OHOH38,37916+212%

65Washington County, OHOH58,38915+205%

66Morrow County, OHOH36,30515+519%

67Harrison County, OHOH14,07015+110%

68Lawrence County, OHOH55,71015+107%

69Ashland County, OHOH52,52315+178%

70Crawford County, OHOH41,89614+397%

71Wyandot County, OHOH21,56714+540%

72Mercer County, OHOH42,73714+373%

73Coshocton County, OHOH37,18814+177%

74Auglaize County, OHOH45,90914+505%

75Highland County, OHOH43,82314+88%

76Pike County, OHOH27,06113+190%

77Carroll County, OHOH26,47513+311%

78Darke County, OHOH51,52013+204%

79Hocking County, OHOH27,51213+232%

80Brown County, OHOH44,39713+275%

81Preble County, OHOH40,66412+371%

82Jackson County, OHOH32,81711+325%

83Monroe County, OHOH12,99411+434%

84Perry County, OHOH35,91810+404%

85Adams County, OHOH27,86510+629%

86Meigs County, OHOH21,58710+238%

87Vinton County, OHOH12,64510+662%

88Holmes County, OHOH44,9707+652%

SHOWING 1–88 OF 88

Download CSV (full list, 88 rows)How this score is calculated

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