RANKING · 1990 CENSUS · 88 SHOWN OF 88

Least racially diverse, Ohio counties · 1990

Name: Least racially diverse, Ohio counties, 1990
Creator: CensusEasy
License: https://creativecommons.org/licenses/by/4.0/

Ohio counties with the lowest CensusEasy Diversity Score, where most residents share the same race or ethnicity (1990 ACS). This list covers the 88 counties in Ohio that qualify, ranked against each other statewide. The median across all 88 is 8.

Flip the list · Most racially diverse, US counties →

OhioAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2024

RANKPLACESTATEPOPDIVERSITY SCOREVS –

01Holmes County, OHOH44,9701–

02Noble County, OHOH14,2761–

03Vinton County, OHOH12,6451–

04Adams County, OHOH27,8651–

05Perry County, OHOH35,9182–

06Monroe County, OHOH12,9942–

07Wyandot County, OHOH21,5672–

08Auglaize County, OHOH45,9092–

09Morrow County, OHOH36,3052–

10Preble County, OHOH40,6643–

11Jackson County, OHOH32,8173–

12Crawford County, OHOH41,8963–

13Mercer County, OHOH42,7373–

14Meigs County, OHOH21,5873–

15Carroll County, OHOH26,4753–

16Brown County, OHOH44,3973–

17Hocking County, OHOH27,5124–

18Tuscarawas County, OHOH92,3734–

19Hardin County, OHOH30,0724–

20Darke County, OHOH51,5204–

21Knox County, OHOH64,0024–

22Pike County, OHOH27,0615–

23Clermont County, OHOH216,9775–

24Medina County, OHOH185,0255–

25Coshocton County, OHOH37,1885–

26Washington County, OHOH58,3895–

27Guernsey County, OHOH38,3795–

28Columbiana County, OHOH99,3775–

29Ashland County, OHOH52,5235–

30Geauga County, OHOH95,6765–

31Fairfield County, OHOH169,7525–

32Belmont County, OHOH64,4346–

33Shelby County, OHOH48,0656–

34Williams County, OHOH36,5496–

35Van Wert County, OHOH29,0136–

36Clinton County, OHOH42,3016–

37Licking County, OHOH185,5647–

38Wayne County, OHOH116,7587–

39Logan County, OHOH46,3027–

40Harrison County, OHOH14,0707–

41Highland County, OHOH43,8237–

42Lawrence County, OHOH55,7107–

43Lake County, OHOH232,2178–

44Huron County, OHOH58,2508–

45Miami County, OHOH112,6348–

46Delaware County, OHOH242,0328–

47Fayette County, OHOH28,5528–

48Warren County, OHOH257,1819–

49Champaign County, OHOH38,8209–

50Paulding County, OHOH18,7279–

51Gallia County, OHOH29,07210–

52Putnam County, OHOH34,38010–

53Hancock County, OHOH75,03410–

54Scioto County, OHOH71,36510–

55Wood County, OHOH134,17610–

56Portage County, OHOH163,40411–

57Union County, OHOH73,44611–

58Morgan County, OHOH13,62612–

59Muskingum County, OHOH87,01412–

60Henry County, OHOH27,59812–

61Ottawa County, OHOH39,48112–

62Ashtabula County, OHOH96,71312–

63Fulton County, OHOH41,85312–

64Seneca County, OHOH54,52213–

65Marion County, OHOH65,11514–

66Butler County, OHOH400,12814–

67Athens County, OHOH63,19715–

68Jefferson County, OHOH63,59715–

69Pickaway County, OHOH62,97817–

70Ross County, OHOH76,42918–

71Trumbull County, OHOH198,97218–

72Stark County, OHOH373,77119–

73Sandusky County, OHOH58,65520–

74Defiance County, OHOH38,29220–

75Madison County, OHOH46,98520–

76Richland County, OHOH124,89321–

77Erie County, OHOH73,29623–

78Greene County, OHOH174,32223–

79Clark County, OHOH135,34023–

80Allen County, OHOH100,88128–

81Summit County, OHOH538,37630–

82Lorain County, OHOH323,21931–

83Mahoning County, OHOH224,70637–

84Franklin County, OHOH1,361,53640–

85Montgomery County, OHOH539,59840–

86Lucas County, OHOH423,34741–

87Hamilton County, OHOH838,41845–

88Cuyahoga County, OHOH1,232,92553–

SHOWING 1–88 OF 88

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

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