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. The median across all 88 is 36.5.

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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 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS