RANKING · 2025 ESTIMATES · 88 SHOWN OF 88

Most population lost, Ohio counties

Ohio counties that lost the most residents from the 2020 census to 2025, 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, OHOH1,232,925-31,892+76%

02Lucas County, OHOH423,347-7,932+9%

03Mahoning County, OHOH224,706-3,908−46%

04Trumbull County, OHOH198,972-3,005+11%

05Scioto County, OHOH71,365-2,643+133%

06Lawrence County, OHOH55,710-2,530−622%

07Columbiana County, OHOH99,377-2,500−166%

08Erie County, OHOH73,296-2,326−184%

09Belmont County, OHOH64,434-2,063+143%

10Summit County, OHOH538,376-2,052−107%

11Jefferson County, OHOH63,597-1,652−74%

12Washington County, OHOH58,389-1,382−239%

13Allen County, OHOH100,881-1,325+3%

14Stark County, OHOH373,771-1,082−110%

15Tuscarawas County, OHOH92,373-890−113%

16Ottawa County, OHOH39,481-883−192%

17Ashtabula County, OHOH96,713-861−130%

18Fulton County, OHOH41,853-860−124%

19Ross County, OHOH76,429-664−117%

20Clark County, OHOH135,340-661−76%

21Hardin County, OHOH30,072-624−175%

22Meigs County, OHOH21,587-623−833%

23Williams County, OHOH36,549-553−125%

24Seneca County, OHOH54,522-547−48%

25Hocking County, OHOH27,512-538−120%

26Auglaize County, OHOH45,909-513−125%

27Harrison County, OHOH14,070-413+80%

28Fayette County, OHOH28,552-399−141%

29Monroe County, OHOH12,994-391+23%

30Lake County, OHOH232,217-386−103%

31Darke County, OHOH51,520-361+16%

32Preble County, OHOH40,664-335−115%

33Wyandot County, OHOH21,567-333−151%

34Huron County, OHOH58,250-315−110%

35Carroll County, OHOH26,475-246−111%

36Marion County, OHOH65,115-244−113%

37Sandusky County, OHOH58,655-241+41%

38Morgan County, OHOH13,626-176−125%

39Shelby County, OHOH48,065-165−106%

40Vinton County, OHOH12,645-155−109%

41Gallia County, OHOH29,072-148−229%

42Wayne County, OHOH116,758-136−101%

43Crawford County, OHOH41,896-129−86%

44Paulding County, OHOH18,727-79−59%

45Putnam County, OHOH34,380-71−108%

46Henry County, OHOH27,598-64−163%

47Guernsey County, OHOH38,379-59−103%

48Richland County, OHOH124,893-43−102%

49Pike County, OHOH27,061-27−101%

50Defiance County, OHOH38,292+6−96%

51Ashland County, OHOH52,523+76−98%

52Van Wert County, OHOH29,013+82−110%

53Champaign County, OHOH38,820+106−96%

54Hancock County, OHOH75,034+114−98%

55Logan County, OHOH46,302+152−96%

56Noble County, OHOH14,276+161−94%

57Jackson County, OHOH32,817+164−93%

58Mercer County, OHOH42,737+209−86%

59Geauga County, OHOH95,676+279−97%

60Clinton County, OHOH42,301+283−94%

61Adams County, OHOH27,865+388−80%

62Highland County, OHOH43,823+506−90%

63Perry County, OHOH35,918+510−80%

64Coshocton County, OHOH37,188+576−53%

65Muskingum County, OHOH87,014+604−76%

66Brown County, OHOH44,397+721−90%

67Holmes County, OHOH44,970+747−88%

68Athens County, OHOH63,197+766−71%

69Knox County, OHOH64,002+1,281−82%

70Morrow County, OHOH36,305+1,355−65%

71Portage County, OHOH163,404+1,613−83%

72Wood County, OHOH134,176+1,928−75%

73Montgomery County, OHOH539,598+2,289−116%

74Medina County, OHOH185,025+2,555−91%

75Madison County, OHOH46,985+3,161+1%

76Miami County, OHOH112,634+3,860−32%

77Pickaway County, OHOH62,978+4,439−1%

78Greene County, OHOH174,322+6,356−43%

79Licking County, OHOH185,564+7,045−59%

80Hamilton County, OHOH838,418+7,779−137%

81Clermont County, OHOH216,977+8,376−70%

82Butler County, OHOH400,128+9,771−76%

83Lorain County, OHOH323,219+10,255−24%

84Union County, OHOH73,446+10,662+19%

85Fairfield County, OHOH169,752+10,831−44%

86Warren County, OHOH257,181+14,844−67%

87Delaware County, OHOH242,032+27,908−35%

88Franklin County, OHOH1,361,536+37,729−65%

SHOWING 1–88 OF 88

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU POPULATION ESTIMATES