RANKING · 2024 ACS · 88 SHOWN OF 88

Oldest by median age, Ohio counties

Ohio counties ranked by median age of residents (2024 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 2000

01Noble County, OHOH14,27653.4+50%

02Ottawa County, OHOH39,48150.6+23%

03Monroe County, OHOH12,99446.3+13%

04Carroll County, OHOH26,47545.6+18%

05Harrison County, OHOH14,07045.5+11%

06Erie County, OHOH73,29645.3+15%

07Geauga County, OHOH95,67645.0+16%

08Columbiana County, OHOH99,37744.6+16%

09Morgan County, OHOH13,62644.6+15%

10Jefferson County, OHOH63,59744.3+6%

11Belmont County, OHOH64,43444.1+8%

12Meigs County, OHOH21,58744.1+14%

13Lake County, OHOH232,21744.1+14%

14Washington County, OHOH58,38944.0+13%

15Vinton County, OHOH12,64544.0+24%

16Trumbull County, OHOH198,97243.7+12%

17Crawford County, OHOH41,89643.4+14%

18Hocking County, OHOH27,51243.4+15%

19Medina County, OHOH185,02543.3+18%

20Preble County, OHOH40,66443.3+15%

21Mahoning County, OHOH224,70643.2+9%

22Morrow County, OHOH36,30543.2+18%

23Ashtabula County, OHOH96,71343.0+14%

24Guernsey County, OHOH38,37942.9+14%

25Brown County, OHOH44,39742.5+20%

26Sandusky County, OHOH58,65542.5+14%

27Adams County, OHOH27,86542.1+16%

28Lorain County, OHOH323,21942.1+15%

29Lawrence County, OHOH55,71041.9+11%

30Logan County, OHOH46,30241.9+14%

31Darke County, OHOH51,52041.8+12%

32Stark County, OHOH373,77141.8+9%

33Champaign County, OHOH38,82041.7+13%

34Pike County, OHOH27,06141.7+18%

35Wyandot County, OHOH21,56741.7+11%

36Henry County, OHOH27,59841.6+14%

37Williams County, OHOH36,54941.6+13%

38Van Wert County, OHOH29,01341.6+11%

39Fulton County, OHOH41,85341.5+15%

40Madison County, OHOH46,98541.5+16%

41Gallia County, OHOH29,07241.4+11%

42Summit County, OHOH538,37641.4+11%

43Coshocton County, OHOH37,18841.3+9%

44Miami County, OHOH112,63441.3+10%

45Perry County, OHOH35,91841.3+18%

46Ashland County, OHOH52,52341.2+13%

47Clark County, OHOH135,34041.2+10%

48Defiance County, OHOH38,29241.1+13%

49Ross County, OHOH76,42941.1+11%

50Scioto County, OHOH71,36541.1+12%

51Tuscarawas County, OHOH92,37341.1+8%

52Auglaize County, OHOH45,90941.0+12%

53Highland County, OHOH43,82341.0+14%

54Paulding County, OHOH18,72741.0+12%

55Richland County, OHOH124,89340.9+8%

56Clermont County, OHOH216,97740.8+17%

57Clinton County, OHOH42,30140.8+16%

58Putnam County, OHOH34,38040.6+16%

59Cuyahoga County, OHOH1,232,92540.4+8%

60Muskingum County, OHOH87,01440.3+10%

61Shelby County, OHOH48,06540.3+16%

62Licking County, OHOH185,56440.3+10%

63Seneca County, OHOH54,52240.2+11%

64Delaware County, OHOH242,03240.1+14%

65Huron County, OHOH58,25040.1+15%

66Marion County, OHOH65,11540.1+8%

67Warren County, OHOH257,18140.1+14%

68Jackson County, OHOH32,81740.0+10%

69Fayette County, OHOH28,55239.9+6%

70Allen County, OHOH100,88139.7+9%

71Portage County, OHOH163,40439.6+15%

72Pickaway County, OHOH62,97839.6+10%

73Fairfield County, OHOH169,75239.5+9%

74Hancock County, OHOH75,03439.5+10%

75Knox County, OHOH64,00239.4+8%

76Mercer County, OHOH42,73739.4+10%

77Wayne County, OHOH116,75838.9+10%

78Montgomery County, OHOH539,59838.8+7%

79Greene County, OHOH174,32238.7+9%

80Lucas County, OHOH423,34738.5+10%

81Union County, OHOH73,44638.5+12%

82Butler County, OHOH400,12837.2+9%

83Hamilton County, OHOH838,41836.9+4%

84Wood County, OHOH134,17636.2+11%

85Hardin County, OHOH30,07235.2+6%

86Franklin County, OHOH1,361,53634.8+7%

87Athens County, OHOH63,19733.2+29%

88Holmes County, OHOH44,97032.7+17%

SHOWING 1–88 OF 88

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES