RANKING · 2024 ACS · 88 SHOWN OF 88

Least racially diverse, Ohio counties

Ohio counties with the lowest CensusEasy Diversity Score, where most residents share the same race or ethnicity (2024 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

RANKPLACESTATEPOPDIVERSITY SCOREVS –

01Holmes County, OHOH44,9707–

02Vinton County, OHOH12,64510–

03Meigs County, OHOH21,58710–

04Adams County, OHOH27,86510–

05Perry County, OHOH35,91810–

06Monroe County, OHOH12,99411–

07Jackson County, OHOH32,81711–

08Preble County, OHOH40,66412–

09Brown County, OHOH44,39713–

10Hocking County, OHOH27,51213–

11Darke County, OHOH51,52013–

12Carroll County, OHOH26,47513–

13Pike County, OHOH27,06113–

14Highland County, OHOH43,82314–

15Auglaize County, OHOH45,90914–

16Coshocton County, OHOH37,18814–

17Mercer County, OHOH42,73714–

18Wyandot County, OHOH21,56714–

19Crawford County, OHOH41,89614–

20Ashland County, OHOH52,52315–

21Lawrence County, OHOH55,71015–

22Harrison County, OHOH14,07015–

23Morrow County, OHOH36,30515–

24Washington County, OHOH58,38915–

25Guernsey County, OHOH38,37916–

26Knox County, OHOH64,00217–

27Geauga County, OHOH95,67617–

28Hardin County, OHOH30,07217–

29Gallia County, OHOH29,07218–

30Wayne County, OHOH116,75818–

31Noble County, OHOH14,27619–

32Columbiana County, OHOH99,37719–

33Scioto County, OHOH71,36519–

34Tuscarawas County, OHOH92,37319–

35Champaign County, OHOH38,82020–

36Clinton County, OHOH42,30120–

37Van Wert County, OHOH29,01320–

38Shelby County, OHOH48,06520–

39Logan County, OHOH46,30220–

40Medina County, OHOH185,02521–

41Putnam County, OHOH34,38021–

42Williams County, OHOH36,54921–

43Fayette County, OHOH28,55222–

44Belmont County, OHOH64,43422–

45Clermont County, OHOH216,97722–

46Pickaway County, OHOH62,97822–

47Muskingum County, OHOH87,01422–

48Ottawa County, OHOH39,48123–

49Morgan County, OHOH13,62623–

50Paulding County, OHOH18,72723–

51Miami County, OHOH112,63424–

52Athens County, OHOH63,19726–

53Ross County, OHOH76,42927–

54Jefferson County, OHOH63,59727–

55Henry County, OHOH27,59828–

56Seneca County, OHOH54,52228–

57Huron County, OHOH58,25028–

58Fulton County, OHOH41,85329–

59Hancock County, OHOH75,03430–

60Ashtabula County, OHOH96,71330–

61Marion County, OHOH65,11531–

62Madison County, OHOH46,98531–

63Portage County, OHOH163,40432–

64Wood County, OHOH134,17633–

65Defiance County, OHOH38,29234–

66Licking County, OHOH185,56434–

67Trumbull County, OHOH198,97234–

68Union County, OHOH73,44635–

69Lake County, OHOH232,21735–

70Richland County, OHOH124,89336–

71Stark County, OHOH373,77136–

72Sandusky County, OHOH58,65539–

73Clark County, OHOH135,34040–

74Warren County, OHOH257,18140–

75Greene County, OHOH174,32241–

76Fairfield County, OHOH169,75242–

77Erie County, OHOH73,29644–

78Allen County, OHOH100,88145–

79Delaware County, OHOH242,03245–

80Lorain County, OHOH323,21951–

81Butler County, OHOH400,12853–

82Mahoning County, OHOH224,70654–

83Summit County, OHOH538,37655–

84Montgomery County, OHOH539,59862–

85Lucas County, OHOH423,34765–

86Hamilton County, OHOH838,41868–

87Cuyahoga County, OHOH1,232,92574–

88Franklin County, OHOH1,361,53675–

SHOWING 1–88 OF 88

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

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES