RANKING · 2020 CENSUS · 88 SHOWN OF 88

Fastest shrinking, Ohio counties · 2020

Ohio counties with the steepest population decline from the 2010 census to 2020. This list covers the 88 counties in Ohio that qualify, ranked against each other statewide.

Flip the list · Fastest growing, US counties →

OhioAll states All rankings

SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Most population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01Harrison County, OHOH14,070-8.7%−7.3 pts

02Monroe County, OHOH12,994-8.6%−6.5 pts

03Morgan County, OHOH13,626-8.3%−13.3 pts

04Carroll County, OHOH26,475-7.3%−16.1 pts

05Scioto County, OHOH71,365-6.9%−5.5 pts

06Lawrence County, OHOH55,710-6.7%−7.5 pts

07Meigs County, OHOH21,587-6.6%−6.9 pts

08Jefferson County, OHOH63,597-6.4%+1.6 pts

09Pike County, OHOH27,061-5.6%−19.9 pts

10Belmont County, OHOH64,434-5.5%−4.4 pts

11Gallia County, OHOH29,072-5.5%−5.9 pts

12Columbiana County, OHOH99,377-5.5%−9.0 pts

13Vinton County, OHOH12,645-4.7%−20.1 pts

14Hocking County, OHOH27,512-4.5%−15.1 pts

15Mahoning County, OHOH224,706-4.3%−1.5 pts

16Hardin County, OHOH30,072-4.2%−6.9 pts

17Paulding County, OHOH18,727-4.1%−3.2 pts

18Guernsey County, OHOH38,379-4.1%−8.6 pts

19Crawford County, OHOH41,896-4.0%−2.1 pts

20Trumbull County, OHOH198,972-4.0%−2.8 pts

21Allen County, OHOH100,881-3.9%−2.7 pts

22Ashtabula County, OHOH96,713-3.9%−6.8 pts

23Adams County, OHOH27,865-3.8%−11.5 pts

24Noble County, OHOH14,276-3.6%−27.6 pts

25Athens County, OHOH63,197-3.6%−8.1 pts

26Champaign County, OHOH38,820-3.4%−11.4 pts

27Sandusky County, OHOH58,655-3.4%−3.1 pts

28Washington County, OHOH58,389-3.2%−4.9 pts

29Wyandot County, OHOH21,567-3.2%−6.1 pts

30Preble County, OHOH40,664-3.0%−8.6 pts

31Seneca County, OHOH54,522-3.0%−1.2 pts

32Brown County, OHOH44,397-2.6%−23.5 pts

33Ottawa County, OHOH39,481-2.6%−5.0 pts

34Shelby County, OHOH48,065-2.4%−9.1 pts

35Lucas County, OHOH423,347-2.4%−0.8 pts

36Darke County, OHOH51,520-2.0%−1.5 pts

37Henry County, OHOH27,598-2.0%−2.3 pts

38Defiance County, OHOH38,292-1.9%−2.3 pts

39Erie County, OHOH73,296-1.9%−5.5 pts

40Perry County, OHOH35,918-1.8%−9.8 pts

41Huron County, OHOH58,250-1.8%−7.6 pts

42Jackson County, OHOH32,817-1.7%−9.7 pts

43Marion County, OHOH65,115-1.7%−4.7 pts

44Clark County, OHOH135,340-1.7%+0.2 pts

45Williams County, OHOH36,549-1.4%−7.5 pts

46Ashland County, OHOH52,523-1.3%−11.9 pts

47Ross County, OHOH76,429-1.2%−7.0 pts

48Cuyahoga County, OHOH1,232,925-1.2%+0.1 pts

49Coshocton County, OHOH37,188-0.8%−4.2 pts

50Highland County, OHOH43,823-0.6%−15.0 pts

51Fayette County, OHOH28,552-0.3%−3.8 pts

52Summit County, OHOH538,376-0.2%−5.7 pts

53Stark County, OHOH373,771-0.2%−3.1 pts

54Putnam County, OHOH34,380-0.1%−2.8 pts

55Clinton County, OHOH42,301-0.1%−14.5 pts

56Fulton County, OHOH41,853+0.0%−9.3 pts

57Hancock County, OHOH75,034+0.2%−8.6 pts

58Portage County, OHOH163,404+0.2%−6.4 pts

59Morrow County, OHOH36,305+0.4%−13.6 pts

60Richland County, OHOH124,893+0.4%−1.8 pts

61Muskingum County, OHOH87,014+0.4%−2.7 pts

62Montgomery County, OHOH539,598+0.4%+3.0 pts

63Logan County, OHOH46,302+0.6%−8.1 pts

64Van Wert County, OHOH29,013+0.7%+3.3 pts

65Tuscarawas County, OHOH92,373+0.7%−7.4 pts

66Madison County, OHOH46,985+0.9%−7.6 pts

67Auglaize County, OHOH45,909+1.0%−3.5 pts

68Lake County, OHOH232,217+1.1%−4.5 pts

69Wayne County, OHOH116,758+2.1%−7.9 pts

70Geauga County, OHOH95,676+2.2%−9.9 pts

71Knox County, OHOH64,002+3.0%−11.8 pts

72Hamilton County, OHOH838,418+3.5%+5.9 pts

73Lorain County, OHOH323,219+3.9%−1.1 pts

74Greene County, OHOH174,322+4.0%−4.2 pts

75Mercer County, OHOH42,737+4.2%+0.4 pts

76Holmes County, OHOH44,970+4.4%−14.2 pts

77Pickaway County, OHOH62,978+5.1%−4.2 pts

78Wood County, OHOH134,176+5.4%−1.5 pts

79Clermont County, OHOH216,977+5.7%−12.8 pts

80Medina County, OHOH185,025+5.9%−17.6 pts

81Butler County, OHOH400,128+6.0%−8.1 pts

82Miami County, OHOH112,634+6.1%+0.0 pts

83Licking County, OHOH185,564+7.2%−6.2 pts

84Fairfield County, OHOH169,752+8.7%−9.9 pts

85Franklin County, OHOH1,361,536+13.8%+2.6 pts

86Warren County, OHOH257,181+13.9%−25.1 pts

87Union County, OHOH73,446+20.0%−7.9 pts

88Delaware County, OHOH242,032+22.9%−41.4 pts

SHOWING 1–88 OF 88

Download CSV (full list, 88 rows)

UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS