RANKING · 2010 CENSUS · 88 SHOWN OF 88

Most population lost, Ohio counties · 2010

Ohio counties that lost the most residents from the 2000 census to 2010, by raw count of people rather than percentage. This list covers the 88 counties in Ohio that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01Cuyahoga County, OHOH1,232,925-113,856+527%

02Hamilton County, OHOH838,418-42,929+105%

03Montgomery County, OHOH539,598-23,909+62%

04Mahoning County, OHOH224,706-18,732+158%

05Trumbull County, OHOH198,972-14,804+449%

06Lucas County, OHOH423,347-13,239+81%

07Clark County, OHOH135,340-6,409+128%

08Richland County, OHOH124,893-4,377−261%

09Columbiana County, OHOH99,377-4,234−211%

10Jefferson County, OHOH63,597-4,185−35%

11Crawford County, OHOH41,896-3,182+252%

12Stark County, OHOH373,771-2,512−124%

13Erie County, OHOH73,296-2,472−189%

14Allen County, OHOH100,881-2,142+67%

15Seneca County, OHOH54,522-1,938+85%

16Williams County, OHOH36,549-1,546−169%

17Washington County, OHOH58,389-1,473−248%

18Ashtabula County, OHOH96,713-1,231−142%

19Summit County, OHOH538,376-1,118−104%

20Henry County, OHOH27,598-995−1075%

21Van Wert County, OHOH29,013-915+14%

22Sandusky County, OHOH58,655-848+396%

23Guernsey County, OHOH38,379-705−140%

24Paulding County, OHOH18,727-679+248%

25Auglaize County, OHOH45,909-662−133%

26Monroe County, OHOH12,994-538+70%

27Defiance County, OHOH38,292-463−409%

28Darke County, OHOH51,520-350+13%

29Wyandot County, OHOH21,567-293−145%

30Putnam County, OHOH34,380-227−125%

31Logan County, OHOH46,302-147−104%

32Gallia County, OHOH29,072-135−217%

33Mercer County, OHOH42,737-110−107%

34Preble County, OHOH40,664-67−103%

35Carroll County, OHOH26,4750−100%

36Harrison County, OHOH14,070+8−103%

37Hardin County, OHOH30,072+113−86%

38Lawrence County, OHOH55,710+131−73%

39Huron County, OHOH58,250+139−96%

40Morgan County, OHOH13,626+157−78%

41Belmont County, OHOH64,434+174−121%

42Coshocton County, OHOH37,188+246−80%

43Marion County, OHOH65,115+284−85%

44Scioto County, OHOH71,365+304−127%

45Ottawa County, OHOH39,481+443−54%

46Jackson County, OHOH32,817+584−76%

47Noble County, OHOH14,276+587−78%

48Fayette County, OHOH28,552+597−38%

49Fulton County, OHOH41,853+614−83%

50Ashland County, OHOH52,523+616−88%

51Vinton County, OHOH12,645+629−63%

52Meigs County, OHOH21,587+698+721%

53Pike County, OHOH27,061+1,014−71%

54Hocking County, OHOH27,512+1,139−58%

55Champaign County, OHOH38,820+1,207−58%

56Adams County, OHOH27,865+1,220−38%

57Muskingum County, OHOH87,014+1,489−41%

58Clinton County, OHOH42,301+1,497−71%

59Shelby County, OHOH48,065+1,513−49%

60Tuscarawas County, OHOH92,373+1,668−76%

61Perry County, OHOH35,918+1,980−21%

62Geauga County, OHOH95,676+2,494−74%

63Lake County, OHOH232,217+2,530−79%

64Athens County, OHOH63,197+2,534−5%

65Brown County, OHOH44,397+2,561−65%

66Highland County, OHOH43,823+2,714−47%

67Wayne County, OHOH116,758+2,956−71%

68Pickaway County, OHOH62,978+2,971−34%

69Morrow County, OHOH36,305+3,199−18%

70Madison County, OHOH46,985+3,222+2%

71Holmes County, OHOH44,970+3,423−44%

72Hancock County, OHOH75,034+3,487−39%

73Miami County, OHOH112,634+3,638−36%

74Wood County, OHOH134,176+4,423−43%

75Ross County, OHOH76,429+4,719+18%

76Knox County, OHOH64,002+6,421−9%

77Portage County, OHOH163,404+9,358−1%

78Union County, OHOH73,446+11,391+27%

79Greene County, OHOH174,322+13,687+23%

80Lorain County, OHOH323,219+16,692+23%

81Clermont County, OHOH216,977+19,386−30%

82Licking County, OHOH185,564+21,001+22%

83Medina County, OHOH185,025+21,237−26%

84Fairfield County, OHOH169,752+23,397+21%

85Butler County, OHOH400,128+35,323−15%

86Warren County, OHOH257,181+54,310+22%

87Delaware County, OHOH242,032+64,225+49%

88Franklin County, OHOH1,361,536+94,436−12%

SHOWING 1–88 OF 88

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS