RANKING · 2000 CENSUS · 88 SHOWN OF 88

Youngest by median age, Ohio counties · 2000

Ohio counties with the youngest median age (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

01Athens County, OHOH63,19725.7+1%

02Holmes County, OHOH44,97028.0+1%

03Franklin County, OHOH1,361,53632.5+5%

04Wood County, OHOH134,17632.6+11%

05Hardin County, OHOH30,07233.3+5%

06Butler County, OHOH400,12834.2+8%

07Portage County, OHOH163,40434.4+14%

08Union County, OHOH73,44634.5+5%

09Clermont County, OHOH216,97734.8+11%

10Shelby County, OHOH48,06534.8+10%

11Huron County, OHOH58,25034.9+8%

12Lucas County, OHOH423,34735.0+7%

13Perry County, OHOH35,91835.0+7%

14Putnam County, OHOH34,38035.0+14%

15Warren County, OHOH257,18135.2+7%

16Clinton County, OHOH42,30135.3+8%

17Delaware County, OHOH242,03235.3+6%

18Pike County, OHOH27,06135.3+7%

19Brown County, OHOH44,39735.4+8%

20Wayne County, OHOH116,75835.4+10%

21Noble County, OHOH14,27635.5+6%

22Hamilton County, OHOH838,41835.5+8%

23Vinton County, OHOH12,64535.5+6%

24Greene County, OHOH174,32235.6+10%

25Mercer County, OHOH42,73735.7+12%

26Madison County, OHOH46,98535.8+10%

27Hancock County, OHOH75,03436.0+9%

28Pickaway County, OHOH62,97836.0+10%

29Fulton County, OHOH41,85336.1+10%

30Highland County, OHOH43,82336.1+5%

31Fairfield County, OHOH169,75236.2+8%

32Adams County, OHOH27,86536.3+11%

33Allen County, OHOH100,88136.3+10%

34Ashland County, OHOH52,52336.3+9%

35Jackson County, OHOH32,81736.3+7%

36Seneca County, OHOH54,52236.3+11%

37Montgomery County, OHOH539,59836.4+9%

38Auglaize County, OHOH45,90936.5+11%

39Defiance County, OHOH38,29236.5+12%

40Henry County, OHOH27,59836.5+10%

41Knox County, OHOH64,00236.5+7%

42Lorain County, OHOH323,21936.5+11%

43Morrow County, OHOH36,30536.5+10%

44Muskingum County, OHOH87,01436.5+9%

45Paulding County, OHOH18,72736.5+14%

46Medina County, OHOH185,02536.6+10%

47Licking County, OHOH185,56436.6+9%

48Scioto County, OHOH71,36536.7+7%

49Ross County, OHOH76,42936.9+9%

50Williams County, OHOH36,54936.9+11%

51Logan County, OHOH46,30236.9+10%

52Champaign County, OHOH38,82037.0+8%

53Marion County, OHOH65,11537.2+11%

54Summit County, OHOH538,37637.2+8%

55Cuyahoga County, OHOH1,232,92537.3+7%

56Sandusky County, OHOH58,65537.3+12%

57Darke County, OHOH51,52037.4+10%

58Gallia County, OHOH29,07237.4+12%

59Wyandot County, OHOH21,56737.4+10%

60Fayette County, OHOH28,55237.5+8%

61Preble County, OHOH40,66437.5+11%

62Ashtabula County, OHOH96,71337.6+9%

63Clark County, OHOH135,34037.6+9%

64Lawrence County, OHOH55,71037.6+10%

65Van Wert County, OHOH29,01337.6+11%

66Guernsey County, OHOH38,37937.7+9%

67Hocking County, OHOH27,51237.7+10%

68Miami County, OHOH112,63437.7+10%

69Richland County, OHOH124,89337.7+10%

70Coshocton County, OHOH37,18837.8+9%

71Tuscarawas County, OHOH92,37337.9+8%

72Crawford County, OHOH41,89638.2+11%

73Stark County, OHOH373,77138.2+9%

74Columbiana County, OHOH99,37738.5+10%

75Meigs County, OHOH21,58738.6+10%

76Lake County, OHOH232,21738.6+13%

77Geauga County, OHOH95,67638.7+12%

78Carroll County, OHOH26,47538.8+13%

79Morgan County, OHOH13,62638.9+14%

80Trumbull County, OHOH198,97239.0+10%

81Washington County, OHOH58,38939.1+12%

82Erie County, OHOH73,29639.5+13%

83Mahoning County, OHOH224,70639.7+9%

84Monroe County, OHOH12,99440.8+12%

85Belmont County, OHOH64,43440.9+8%

86Ottawa County, OHOH39,48141.0+12%

87Harrison County, OHOH14,07041.1+12%

88Jefferson County, OHOH63,59741.6+10%

SHOWING 1–88 OF 88

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