RANKING · 2000 CENSUS · 88 SHOWN OF 88

Youngest by median age, Ohio counties · 2000

Ohio counties with the youngest median age (2023 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

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

01Athens County, OHOH63,19725.7+0%

02Holmes County, OHOH44,97028.0+0%

03Franklin County, OHOH1,361,53632.5+0%

04Wood County, OHOH134,17632.6+0%

05Hardin County, OHOH30,07233.3+0%

06Butler County, OHOH400,12834.2+0%

07Portage County, OHOH163,40434.4+0%

08Union County, OHOH73,44634.5+0%

09Clermont County, OHOH216,97734.8+0%

10Shelby County, OHOH48,06534.8+0%

11Huron County, OHOH58,25034.9+0%

12Lucas County, OHOH423,34735.0+0%

13Perry County, OHOH35,91835.0+0%

14Putnam County, OHOH34,38035.0+0%

15Warren County, OHOH257,18135.2+0%

16Clinton County, OHOH42,30135.3+0%

17Delaware County, OHOH242,03235.3+0%

18Pike County, OHOH27,06135.3+0%

19Brown County, OHOH44,39735.4+0%

20Wayne County, OHOH116,75835.4+0%

21Noble County, OHOH14,27635.5+0%

22Hamilton County, OHOH838,41835.5+0%

23Vinton County, OHOH12,64535.5+0%

24Greene County, OHOH174,32235.6+0%

25Mercer County, OHOH42,73735.7+0%

26Madison County, OHOH46,98535.8+0%

27Hancock County, OHOH75,03436.0+0%

28Pickaway County, OHOH62,97836.0+0%

29Fulton County, OHOH41,85336.1+0%

30Highland County, OHOH43,82336.1+0%

31Fairfield County, OHOH169,75236.2+0%

32Adams County, OHOH27,86536.3+0%

33Allen County, OHOH100,88136.3+0%

34Ashland County, OHOH52,52336.3+0%

35Jackson County, OHOH32,81736.3+0%

36Seneca County, OHOH54,52236.3+0%

37Montgomery County, OHOH539,59836.4+0%

38Auglaize County, OHOH45,90936.5+0%

39Defiance County, OHOH38,29236.5+0%

40Henry County, OHOH27,59836.5+0%

41Knox County, OHOH64,00236.5+0%

42Lorain County, OHOH323,21936.5+0%

43Morrow County, OHOH36,30536.5+0%

44Muskingum County, OHOH87,01436.5+0%

45Paulding County, OHOH18,72736.5+0%

46Medina County, OHOH185,02536.6+0%

47Licking County, OHOH185,56436.6+0%

48Scioto County, OHOH71,36536.7+0%

49Ross County, OHOH76,42936.9+0%

50Williams County, OHOH36,54936.9+0%

51Logan County, OHOH46,30236.9+0%

52Champaign County, OHOH38,82037.0+0%

53Marion County, OHOH65,11537.2+0%

54Summit County, OHOH538,37637.2+0%

55Cuyahoga County, OHOH1,232,92537.3+0%

56Sandusky County, OHOH58,65537.3+0%

57Darke County, OHOH51,52037.4+0%

58Gallia County, OHOH29,07237.4+0%

59Wyandot County, OHOH21,56737.4+0%

60Fayette County, OHOH28,55237.5+0%

61Preble County, OHOH40,66437.5+0%

62Ashtabula County, OHOH96,71337.6+0%

63Clark County, OHOH135,34037.6+0%

64Lawrence County, OHOH55,71037.6+0%

65Van Wert County, OHOH29,01337.6+0%

66Guernsey County, OHOH38,37937.7+0%

67Hocking County, OHOH27,51237.7+0%

68Miami County, OHOH112,63437.7+0%

69Richland County, OHOH124,89337.7+0%

70Coshocton County, OHOH37,18837.8+0%

71Tuscarawas County, OHOH92,37337.9+0%

72Crawford County, OHOH41,89638.2+0%

73Stark County, OHOH373,77138.2+0%

74Columbiana County, OHOH99,37738.5+0%

75Meigs County, OHOH21,58738.6+0%

76Lake County, OHOH232,21738.6+0%

77Geauga County, OHOH95,67638.7+0%

78Carroll County, OHOH26,47538.8+0%

79Morgan County, OHOH13,62638.9+0%

80Trumbull County, OHOH198,97239.0+0%

81Washington County, OHOH58,38939.1+0%

82Erie County, OHOH73,29639.5+0%

83Mahoning County, OHOH224,70639.7+0%

84Monroe County, OHOH12,99440.8+0%

85Belmont County, OHOH64,43440.9+0%

86Ottawa County, OHOH39,48141.0+0%

87Harrison County, OHOH14,07041.1+0%

88Jefferson County, OHOH63,59741.6+0%

SHOWING 1–88 OF 88

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