RANKING · 2000 CENSUS · 88 SHOWN OF 88

Oldest by median age, Ohio counties · 2000

Ohio counties ranked by median age of residents (2000 ACS). This list covers the 88 counties in Ohio that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 1990

01Jefferson County, OHOH63,59741.6+10%

02Harrison County, OHOH14,07041.1+12%

03Ottawa County, OHOH39,48141.0+12%

04Belmont County, OHOH64,43440.9+8%

05Monroe County, OHOH12,99440.8+12%

06Mahoning County, OHOH224,70639.7+9%

07Erie County, OHOH73,29639.5+13%

08Washington County, OHOH58,38939.1+12%

09Trumbull County, OHOH198,97239.0+10%

10Morgan County, OHOH13,62638.9+14%

11Carroll County, OHOH26,47538.8+13%

12Geauga County, OHOH95,67638.7+12%

13Meigs County, OHOH21,58738.6+10%

14Lake County, OHOH232,21738.6+13%

15Columbiana County, OHOH99,37738.5+10%

16Crawford County, OHOH41,89638.2+11%

17Stark County, OHOH373,77138.2+9%

18Tuscarawas County, OHOH92,37337.9+8%

19Coshocton County, OHOH37,18837.8+9%

20Guernsey County, OHOH38,37937.7+9%

21Hocking County, OHOH27,51237.7+10%

22Miami County, OHOH112,63437.7+10%

23Richland County, OHOH124,89337.7+10%

24Ashtabula County, OHOH96,71337.6+9%

25Clark County, OHOH135,34037.6+9%

26Lawrence County, OHOH55,71037.6+10%

27Van Wert County, OHOH29,01337.6+11%

28Fayette County, OHOH28,55237.5+8%

29Preble County, OHOH40,66437.5+11%

30Darke County, OHOH51,52037.4+10%

31Gallia County, OHOH29,07237.4+12%

32Wyandot County, OHOH21,56737.4+10%

33Cuyahoga County, OHOH1,232,92537.3+7%

34Sandusky County, OHOH58,65537.3+12%

35Marion County, OHOH65,11537.2+11%

36Summit County, OHOH538,37637.2+8%

37Champaign County, OHOH38,82037.0+8%

38Ross County, OHOH76,42936.9+9%

39Williams County, OHOH36,54936.9+11%

40Logan County, OHOH46,30236.9+10%

41Scioto County, OHOH71,36536.7+7%

42Medina County, OHOH185,02536.6+10%

43Licking County, OHOH185,56436.6+9%

44Auglaize County, OHOH45,90936.5+11%

45Defiance County, OHOH38,29236.5+12%

46Henry County, OHOH27,59836.5+10%

47Knox County, OHOH64,00236.5+7%

48Lorain County, OHOH323,21936.5+11%

49Morrow County, OHOH36,30536.5+10%

50Muskingum County, OHOH87,01436.5+9%

51Paulding County, OHOH18,72736.5+14%

52Montgomery County, OHOH539,59836.4+9%

53Adams County, OHOH27,86536.3+11%

54Allen County, OHOH100,88136.3+10%

55Ashland County, OHOH52,52336.3+9%

56Jackson County, OHOH32,81736.3+7%

57Seneca County, OHOH54,52236.3+11%

58Fairfield County, OHOH169,75236.2+8%

59Fulton County, OHOH41,85336.1+10%

60Highland County, OHOH43,82336.1+5%

61Hancock County, OHOH75,03436.0+9%

62Pickaway County, OHOH62,97836.0+10%

63Madison County, OHOH46,98535.8+10%

64Mercer County, OHOH42,73735.7+12%

65Greene County, OHOH174,32235.6+10%

66Noble County, OHOH14,27635.5+6%

67Hamilton County, OHOH838,41835.5+8%

68Vinton County, OHOH12,64535.5+6%

69Brown County, OHOH44,39735.4+8%

70Wayne County, OHOH116,75835.4+10%

71Clinton County, OHOH42,30135.3+8%

72Delaware County, OHOH242,03235.3+6%

73Pike County, OHOH27,06135.3+7%

74Warren County, OHOH257,18135.2+7%

75Lucas County, OHOH423,34735.0+7%

76Perry County, OHOH35,91835.0+7%

77Putnam County, OHOH34,38035.0+14%

78Huron County, OHOH58,25034.9+8%

79Clermont County, OHOH216,97734.8+11%

80Shelby County, OHOH48,06534.8+10%

81Union County, OHOH73,44634.5+5%

82Portage County, OHOH163,40434.4+14%

83Butler County, OHOH400,12834.2+8%

84Hardin County, OHOH30,07233.3+5%

85Wood County, OHOH134,17632.6+11%

86Franklin County, OHOH1,361,53632.5+5%

87Holmes County, OHOH44,97028.0+1%

88Athens County, OHOH63,19725.7+1%

SHOWING 1–88 OF 88

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