RANKING · 2020 CENSUS · 88 SHOWN OF 88

Most segregated, Ohio counties · 2020

Ohio counties ranked by the CensusEasy Segregation Score, the White vs non-White index of dissimilarity across census tracts (2023 ACS). Higher means residents are more sorted into separate neighborhoods. This list covers the 88 counties in Ohio that qualify, ranked against each other statewide.

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RELATEDOldest by median age Youngest by median age Most foreign-born residents Highest uninsured rate Most women Most men

RANKPLACESTATEPOPSEGREGATION SCOREVS 2000

01Noble County, OHOH14,27666–

02Cuyahoga County, OHOH1,232,92556–

03Mahoning County, OHOH224,70655–

04Harrison County, OHOH14,07054–

05Hamilton County, OHOH838,41851–

06Putnam County, OHOH34,38050–

07Richland County, OHOH124,89349–

08Montgomery County, OHOH539,59848–

09Madison County, OHOH46,98547–

10Fairfield County, OHOH169,75247–

11Jefferson County, OHOH63,59746–

12Trumbull County, OHOH198,97246–

13Pickaway County, OHOH62,97846–

14Summit County, OHOH538,37645–

15Clark County, OHOH135,34045–

16Marion County, OHOH65,11544–

17Lorain County, OHOH323,21944–

18Lucas County, OHOH423,34744–

19Franklin County, OHOH1,361,53643–

20Erie County, OHOH73,29642–

21Stark County, OHOH373,77142–

22Allen County, OHOH100,88142–

23Scioto County, OHOH71,36541–

24Muskingum County, OHOH87,01441–

25Ashtabula County, OHOH96,71339–

26Lake County, OHOH232,21739–

27Warren County, OHOH257,18138–

28Belmont County, OHOH64,43438–

29Hardin County, OHOH30,07237–

30Morrow County, OHOH36,30537–

31Columbiana County, OHOH99,37737–

32Tuscarawas County, OHOH92,37336–

33Licking County, OHOH185,56436–

34Union County, OHOH73,44635–

35Holmes County, OHOH44,97035–

36Ross County, OHOH76,42935–

37Van Wert County, OHOH29,01335–

38Mercer County, OHOH42,73734–

39Darke County, OHOH51,52034–

40Clinton County, OHOH42,30133–

41Crawford County, OHOH41,89633–

42Jackson County, OHOH32,81732–

43Champaign County, OHOH38,82032–

44Knox County, OHOH64,00232–

45Butler County, OHOH400,12832–

46Wayne County, OHOH116,75832–

47Logan County, OHOH46,30230–

48Preble County, OHOH40,66430–

49Auglaize County, OHOH45,90930–

50Lawrence County, OHOH55,71030–

51Adams County, OHOH27,86530–

52Seneca County, OHOH54,52229–

53Meigs County, OHOH21,58729–

54Huron County, OHOH58,25029–

55Monroe County, OHOH12,99429–

56Sandusky County, OHOH58,65528–

57Coshocton County, OHOH37,18828–

58Wyandot County, OHOH21,56728–

59Portage County, OHOH163,40428–

60Greene County, OHOH174,32228–

61Shelby County, OHOH48,06527–

62Geauga County, OHOH95,67627–

63Athens County, OHOH63,19726–

64Delaware County, OHOH242,03226–

65Washington County, OHOH58,38926–

66Ottawa County, OHOH39,48126–

67Brown County, OHOH44,39725–

68Miami County, OHOH112,63425–

69Fulton County, OHOH41,85325–

70Highland County, OHOH43,82324–

71Clermont County, OHOH216,97724–

72Perry County, OHOH35,91824–

73Ashland County, OHOH52,52324–

74Medina County, OHOH185,02524–

75Hocking County, OHOH27,51223–

76Morgan County, OHOH13,62623–

77Defiance County, OHOH38,29223–

78Vinton County, OHOH12,64522–

79Paulding County, OHOH18,72722–

80Wood County, OHOH134,17622–

81Pike County, OHOH27,06121–

82Carroll County, OHOH26,47521–

83Guernsey County, OHOH38,37920–

84Hancock County, OHOH75,03418–

85Fayette County, OHOH28,55217–

86Gallia County, OHOH29,07217–

87Williams County, OHOH36,54916–

88Henry County, OHOH27,59814–

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