RANKING · 2010 CENSUS · 88 SHOWN OF 88

Fastest shrinking, Ohio counties · 2010

Ohio counties with the steepest population decline since the prior decennial census. This list covers the 88 counties in Ohio that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Most densely populated Most sparsely populated Best broadband access Worst broadband access

YEAR2000 2010 2020

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Cuyahoga County, OHOH1,232,925-8.2%+535%

02Mahoning County, OHOH224,706-7.3%+166%

03Crawford County, OHOH41,896-6.8%+259%

04Trumbull County, OHOH198,972-6.6%+455%

05Jefferson County, OHOH63,597-5.7%−29%

06Hamilton County, OHOH838,418-5.1%+110%

07Clark County, OHOH135,340-4.4%+133%

08Montgomery County, OHOH539,598-4.3%+66%

09Williams County, OHOH36,549-3.9%−165%

10Columbiana County, OHOH99,377-3.8%−208%

11Monroe County, OHOH12,994-3.5%+73%

12Henry County, OHOH27,598-3.4%−1072%

13Richland County, OHOH124,893-3.4%−258%

14Paulding County, OHOH18,727-3.3%+252%

15Seneca County, OHOH54,522-3.3%+88%

16Erie County, OHOH73,296-3.1%−186%

17Van Wert County, OHOH29,013-3.1%+17%

18Lucas County, OHOH423,347-2.9%+84%

19Washington County, OHOH58,389-2.3%−245%

20Allen County, OHOH100,881-2.0%+69%

21Guernsey County, OHOH38,379-1.7%−138%

22Auglaize County, OHOH45,909-1.4%−131%

23Sandusky County, OHOH58,655-1.4%+397%

24Wyandot County, OHOH21,567-1.3%−144%

25Ashtabula County, OHOH96,713-1.2%−141%

26Defiance County, OHOH38,292-1.2%−407%

27Stark County, OHOH373,771-0.7%−123%

28Darke County, OHOH51,520-0.7%+14%

29Putnam County, OHOH34,380-0.7%−124%

30Gallia County, OHOH29,072-0.4%−217%

31Logan County, OHOH46,302-0.3%−104%

32Mercer County, OHOH42,737-0.3%−107%

33Summit County, OHOH538,376-0.2%−104%

34Preble County, OHOH40,664-0.2%−103%

35Carroll County, OHOH26,4750.0%−100%

36Harrison County, OHOH14,070+0.1%−104%

37Lawrence County, OHOH55,710+0.2%−73%

38Huron County, OHOH58,250+0.2%−96%

39Belmont County, OHOH64,434+0.2%−121%

40Hardin County, OHOH30,072+0.4%−87%

41Scioto County, OHOH71,365+0.4%−127%

42Marion County, OHOH65,115+0.4%−86%

43Coshocton County, OHOH37,188+0.7%−81%

44Morgan County, OHOH13,626+1.1%−79%

45Ottawa County, OHOH39,481+1.1%−55%

46Lake County, OHOH232,217+1.1%−80%

47Ashland County, OHOH52,523+1.2%−89%

48Fulton County, OHOH41,853+1.5%−84%

49Muskingum County, OHOH87,014+1.8%−43%

50Jackson County, OHOH32,817+1.8%−78%

51Tuscarawas County, OHOH92,373+1.8%−77%

52Fayette County, OHOH28,552+2.1%−40%

53Wayne County, OHOH116,758+2.6%−73%

54Geauga County, OHOH95,676+2.7%−77%

55Meigs County, OHOH21,587+3.0%+718%

56Champaign County, OHOH38,820+3.1%−61%

57Shelby County, OHOH48,065+3.2%−53%

58Wood County, OHOH134,176+3.7%−47%

59Pike County, OHOH27,061+3.7%−74%

60Miami County, OHOH112,634+3.7%−40%

61Clinton County, OHOH42,301+3.7%−74%

62Hocking County, OHOH27,512+4.0%−62%

63Athens County, OHOH63,197+4.1%−9%

64Noble County, OHOH14,276+4.2%−83%

65Adams County, OHOH27,865+4.5%−42%

66Hancock County, OHOH75,034+4.9%−44%

67Vinton County, OHOH12,645+4.9%−68%

68Pickaway County, OHOH62,978+5.6%−39%

69Perry County, OHOH35,918+5.8%−27%

70Lorain County, OHOH323,219+5.9%+17%

71Brown County, OHOH44,397+6.1%−71%

72Portage County, OHOH163,404+6.2%−7%

73Ross County, OHOH76,429+6.4%+11%

74Highland County, OHOH43,823+6.6%−54%

75Madison County, OHOH46,985+8.0%−6%

76Holmes County, OHOH44,970+8.8%−53%

77Franklin County, OHOH1,361,536+8.8%−21%

78Greene County, OHOH174,322+9.3%+13%

79Morrow County, OHOH36,305+10.1%−28%

80Butler County, OHOH400,128+10.6%−25%

81Clermont County, OHOH216,977+10.9%−41%

82Knox County, OHOH64,002+11.8%−20%

83Medina County, OHOH185,025+14.1%−40%

84Licking County, OHOH185,564+14.4%+8%

85Fairfield County, OHOH169,752+19.1%+2%

86Union County, OHOH73,446+27.8%−0%

87Warren County, OHOH257,181+34.3%−12%

88Delaware County, OHOH242,032+58.4%−9%

SHOWING 1–88 OF 88

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