RANKING · 2020 CENSUS · 88 SHOWN OF 88

Most population lost, Ohio counties · 2020

Ohio counties that lost the most residents from the 2010 census to 2020, 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, OHOH1,232,925-15,305−16%

02Lucas County, OHOH423,347-10,536+44%

03Mahoning County, OHOH224,706-10,209+41%

04Trumbull County, OHOH198,972-8,335+209%

05Columbiana County, OHOH99,377-5,964−257%

06Scioto County, OHOH71,365-5,491+385%

07Jefferson County, OHOH63,597-4,460−30%

08Lawrence County, OHOH55,710-4,210−968%

09Allen County, OHOH100,881-4,125+222%

10Ashtabula County, OHOH96,713-3,923−235%

11Belmont County, OHOH64,434-3,903+360%

12Clark County, OHOH135,340-2,332−17%

13Athens County, OHOH63,197-2,326−187%

14Carroll County, OHOH26,475-2,115−191%

15Sandusky County, OHOH58,655-2,048+1098%

16Washington County, OHOH58,389-2,007−301%

17Crawford County, OHOH41,896-1,759+95%

18Gallia County, OHOH29,072-1,714−1590%

19Seneca County, OHOH54,522-1,676+60%

20Guernsey County, OHOH38,379-1,649−193%

21Pike County, OHOH27,061-1,621−147%

22Meigs County, OHOH21,587-1,560−1935%

23Erie County, OHOH73,296-1,457−153%

24Champaign County, OHOH38,820-1,383−148%

25Harrison County, OHOH14,070-1,381+503%

26Hardin County, OHOH30,072-1,362−263%

27Summit County, OHOH538,376-1,353−105%

28Hocking County, OHOH27,512-1,330−149%

29Preble County, OHOH40,664-1,271−157%

30Monroe County, OHOH12,994-1,257+297%

31Morgan County, OHOH13,626-1,252−278%

32Shelby County, OHOH48,065-1,193−140%

33Brown County, OHOH44,397-1,170−116%

34Marion County, OHOH65,115-1,142−159%

35Darke County, OHOH51,520-1,078+248%

36Adams County, OHOH27,865-1,073−155%

37Ottawa County, OHOH39,481-1,064−211%

38Huron County, OHOH58,250-1,061−133%

39Ross County, OHOH76,429-971−124%

40Paulding County, OHOH18,727-808+314%

41Defiance County, OHOH38,292-751−601%

42Stark County, OHOH373,771-733−107%

43Wyandot County, OHOH21,567-715−209%

44Ashland County, OHOH52,523-692−114%

45Perry County, OHOH35,918-650−126%

46Vinton County, OHOH12,645-635−137%

47Jackson County, OHOH32,817-572−124%

48Henry County, OHOH27,598-553−642%

49Williams County, OHOH36,549-540−124%

50Noble County, OHOH14,276-530−119%

51Coshocton County, OHOH37,188-289−124%

52Highland County, OHOH43,823-272−105%

53Fayette County, OHOH28,552-79−108%

54Putnam County, OHOH34,380-48−105%

55Clinton County, OHOH42,301-22−100%

56Fulton County, OHOH41,853+15−100%

57Morrow County, OHOH36,305+123−97%

58Hancock County, OHOH75,034+138−98%

59Van Wert County, OHOH29,013+187−123%

60Logan County, OHOH46,302+292−92%

61Muskingum County, OHOH87,014+336−87%

62Portage County, OHOH163,404+372−96%

63Madison County, OHOH46,985+389−88%

64Richland County, OHOH124,893+461−83%

65Auglaize County, OHOH45,909+473−77%

66Tuscarawas County, OHOH92,373+681−90%

67Mercer County, OHOH42,737+1,714+16%

68Knox County, OHOH64,002+1,800−74%

69Holmes County, OHOH44,970+1,857−70%

70Geauga County, OHOH95,676+2,008−79%

71Montgomery County, OHOH539,598+2,156−115%

72Wayne County, OHOH116,758+2,374−77%

73Lake County, OHOH232,217+2,562−79%

74Pickaway County, OHOH62,978+2,841−36%

75Miami County, OHOH112,634+6,268+10%

76Greene County, OHOH174,322+6,393−43%

77Wood County, OHOH134,176+6,760−13%

78Medina County, OHOH185,025+10,138−65%

79Union County, OHOH73,446+10,484+17%

80Clermont County, OHOH216,977+11,238−60%

81Lorain County, OHOH323,219+11,608−14%

82Licking County, OHOH185,564+12,027−30%

83Fairfield County, OHOH169,752+12,765−34%

84Butler County, OHOH400,128+22,227−46%

85Hamilton County, OHOH838,418+28,265−235%

86Warren County, OHOH257,181+29,644−33%

87Delaware County, OHOH242,032+39,910−7%

88Franklin County, OHOH1,361,536+160,393+49%

SHOWING 1–88 OF 88

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