RANKING · 2020 CENSUS · 88 SHOWN OF 88

Least racially diverse, Ohio counties · 2020

Ohio counties with the lowest CensusEasy Diversity Score, where most residents share the same race or ethnicity (2023 ACS). This list covers the 88 counties in Ohio that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPDIVERSITY SCOREVS 2000

01Holmes County, OHOH44,9706+104%

02Monroe County, OHOH12,9947+266%

03Vinton County, OHOH12,6458+230%

04Perry County, OHOH35,9188+297%

05Adams County, OHOH27,8658+240%

06Carroll County, OHOH26,4759+190%

07Brown County, OHOH44,3979+150%

08Jackson County, OHOH32,8179+168%

09Meigs County, OHOH21,5879+164%

10Preble County, OHOH40,6649+267%

11Hocking County, OHOH27,51210+167%

12Morrow County, OHOH36,30510+288%

13Darke County, OHOH51,52010+165%

14Coshocton County, OHOH37,18810+99%

15Crawford County, OHOH41,89610+149%

16Harrison County, OHOH14,07011+65%

17Highland County, OHOH43,82311+91%

18Pike County, OHOH27,06112+184%

19Wyandot County, OHOH21,56712+123%

20Washington County, OHOH58,38912+149%

21Mercer County, OHOH42,73712+207%

22Auglaize County, OHOH45,90912+257%

23Ashland County, OHOH52,52312+138%

24Geauga County, OHOH95,67613+128%

25Guernsey County, OHOH38,37913+120%

26Hardin County, OHOH30,07214+188%

27Lawrence County, OHOH55,71014+98%

28Knox County, OHOH64,00214+242%

29Gallia County, OHOH29,07216+74%

30Columbiana County, OHOH99,37716+80%

31Scioto County, OHOH71,36516+84%

32Van Wert County, OHOH29,01316+162%

33Wayne County, OHOH116,75816+125%

34Clinton County, OHOH42,30117+113%

35Belmont County, OHOH64,43417+64%

36Shelby County, OHOH48,06517+115%

37Fayette County, OHOH28,55217+89%

38Tuscarawas County, OHOH92,37317+318%

39Champaign County, OHOH38,82018+120%

40Medina County, OHOH185,02518+194%

41Logan County, OHOH46,30218+161%

42Morgan County, OHOH13,62618+92%

43Williams County, OHOH36,54919+94%

44Ottawa County, OHOH39,48119+66%

45Clermont County, OHOH216,97719+211%

46Putnam County, OHOH34,38019+67%

47Noble County, OHOH14,27619+12%

48Pickaway County, OHOH62,97820+14%

49Paulding County, OHOH18,72720+101%

50Miami County, OHOH112,63421+150%

51Muskingum County, OHOH87,01422+90%

52Jefferson County, OHOH63,59724+52%

53Seneca County, OHOH54,52224+82%

54Huron County, OHOH58,25024+110%

55Ross County, OHOH76,42924+44%

56Henry County, OHOH27,59824+61%

57Fulton County, OHOH41,85326+73%

58Ashtabula County, OHOH96,71326+93%

59Hancock County, OHOH75,03427+110%

60Athens County, OHOH63,19728+116%

61Licking County, OHOH185,56428+238%

62Portage County, OHOH163,40429+155%

63Madison County, OHOH46,98530+69%

64Wood County, OHOH134,17631+125%

65Marion County, OHOH65,11531+78%

66Lake County, OHOH232,21731+179%

67Union County, OHOH73,44631+214%

68Defiance County, OHOH38,29232+48%

69Trumbull County, OHOH198,97232+52%

70Stark County, OHOH373,77134+69%

71Richland County, OHOH124,89335+40%

72Warren County, OHOH257,18136+198%

73Fairfield County, OHOH169,75237+259%

74Sandusky County, OHOH58,65537+62%

75Erie County, OHOH73,29639+52%

76Clark County, OHOH135,34039+59%

77Greene County, OHOH174,32240+76%

78Delaware County, OHOH242,03241+235%

79Allen County, OHOH100,88145+43%

80Lorain County, OHOH323,21948+36%

81Butler County, OHOH400,12850+158%

82Mahoning County, OHOH224,70652+28%

83Summit County, OHOH538,37652+53%

84Montgomery County, OHOH539,59861+34%

85Lucas County, OHOH423,34763+35%

86Hamilton County, OHOH838,41866+32%

87Franklin County, OHOH1,361,53672+50%

88Cuyahoga County, OHOH1,232,92573+23%

SHOWING 1–88 OF 88

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

UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES