RANKING · 2024 ACS · 88 SHOWN OF 88

Youngest by median age, Ohio counties

Ohio counties with the youngest median age (2023 ACS). This list covers the 88 counties in Ohio that qualify, ranked against each other statewide.

Flip the list · Oldest by median age, US counties →

OhioAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDOldest by median age Most foreign-born residents Highest uninsured rate Most women Most men Highest disability rate

YEAR1990 2000 2010 2020 2024

RANKPLACESTATEPOPMEDIAN AGEVS 2000

01Holmes County, OHOH44,97032.7+17%

02Athens County, OHOH63,19733.2+29%

03Franklin County, OHOH1,361,53634.8+7%

04Hardin County, OHOH30,07235.2+6%

05Wood County, OHOH134,17636.2+11%

06Hamilton County, OHOH838,41836.9+4%

07Butler County, OHOH400,12837.2+9%

08Lucas County, OHOH423,34738.5+10%

09Union County, OHOH73,44638.5+12%

10Greene County, OHOH174,32238.7+9%

11Montgomery County, OHOH539,59838.8+7%

12Wayne County, OHOH116,75838.9+10%

13Knox County, OHOH64,00239.4+8%

14Mercer County, OHOH42,73739.4+10%

15Fairfield County, OHOH169,75239.5+9%

16Hancock County, OHOH75,03439.5+10%

17Portage County, OHOH163,40439.6+15%

18Pickaway County, OHOH62,97839.6+10%

19Allen County, OHOH100,88139.7+9%

20Fayette County, OHOH28,55239.9+6%

21Jackson County, OHOH32,81740.0+10%

22Delaware County, OHOH242,03240.1+14%

23Huron County, OHOH58,25040.1+15%

24Marion County, OHOH65,11540.1+8%

25Warren County, OHOH257,18140.1+14%

26Seneca County, OHOH54,52240.2+11%

27Muskingum County, OHOH87,01440.3+10%

28Shelby County, OHOH48,06540.3+16%

29Licking County, OHOH185,56440.3+10%

30Cuyahoga County, OHOH1,232,92540.4+8%

31Putnam County, OHOH34,38040.6+16%

32Clermont County, OHOH216,97740.8+17%

33Clinton County, OHOH42,30140.8+16%

34Richland County, OHOH124,89340.9+8%

35Auglaize County, OHOH45,90941.0+12%

36Highland County, OHOH43,82341.0+14%

37Paulding County, OHOH18,72741.0+12%

38Defiance County, OHOH38,29241.1+13%

39Ross County, OHOH76,42941.1+11%

40Scioto County, OHOH71,36541.1+12%

41Tuscarawas County, OHOH92,37341.1+8%

42Ashland County, OHOH52,52341.2+13%

43Clark County, OHOH135,34041.2+10%

44Coshocton County, OHOH37,18841.3+9%

45Miami County, OHOH112,63441.3+10%

46Perry County, OHOH35,91841.3+18%

47Gallia County, OHOH29,07241.4+11%

48Summit County, OHOH538,37641.4+11%

49Fulton County, OHOH41,85341.5+15%

50Madison County, OHOH46,98541.5+16%

51Henry County, OHOH27,59841.6+14%

52Williams County, OHOH36,54941.6+13%

53Van Wert County, OHOH29,01341.6+11%

54Champaign County, OHOH38,82041.7+13%

55Pike County, OHOH27,06141.7+18%

56Wyandot County, OHOH21,56741.7+11%

57Darke County, OHOH51,52041.8+12%

58Stark County, OHOH373,77141.8+9%

59Lawrence County, OHOH55,71041.9+11%

60Logan County, OHOH46,30241.9+14%

61Adams County, OHOH27,86542.1+16%

62Lorain County, OHOH323,21942.1+15%

63Brown County, OHOH44,39742.5+20%

64Sandusky County, OHOH58,65542.5+14%

65Guernsey County, OHOH38,37942.9+14%

66Ashtabula County, OHOH96,71343.0+14%

67Mahoning County, OHOH224,70643.2+9%

68Morrow County, OHOH36,30543.2+18%

69Medina County, OHOH185,02543.3+18%

70Preble County, OHOH40,66443.3+15%

71Crawford County, OHOH41,89643.4+14%

72Hocking County, OHOH27,51243.4+15%

73Trumbull County, OHOH198,97243.7+12%

74Washington County, OHOH58,38944.0+13%

75Vinton County, OHOH12,64544.0+24%

76Belmont County, OHOH64,43444.1+8%

77Meigs County, OHOH21,58744.1+14%

78Lake County, OHOH232,21744.1+14%

79Jefferson County, OHOH63,59744.3+6%

80Columbiana County, OHOH99,37744.6+16%

81Morgan County, OHOH13,62644.6+15%

82Geauga County, OHOH95,67645.0+16%

83Erie County, OHOH73,29645.3+15%

84Harrison County, OHOH14,07045.5+11%

85Carroll County, OHOH26,47545.6+18%

86Monroe County, OHOH12,99446.3+13%

87Ottawa County, OHOH39,48150.6+23%

88Noble County, OHOH14,27653.4+50%

SHOWING 1–88 OF 88

Download CSV (full list, 88 rows)

UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES