RANKING · 1990 CENSUS · 88 SHOWN OF 88

Oldest by median age, Ohio counties · 1990

Ohio counties ranked by median age of residents (1990 ACS). This list covers the 88 counties in Ohio that qualify, ranked against each other statewide. The median across all 88 is 33.6.

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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 –

01Belmont County, OHOH64,43437.9–

02Jefferson County, OHOH63,59737.7–

03Harrison County, OHOH14,07036.7–

04Ottawa County, OHOH39,48136.5–

05Monroe County, OHOH12,99436.4–

06Mahoning County, OHOH224,70636.3–

07Trumbull County, OHOH198,97235.6–

08Meigs County, OHOH21,58735.1–

09Stark County, OHOH373,77135.0–

10Columbiana County, OHOH99,37735.0–

11Washington County, OHOH58,38935.0–

12Tuscarawas County, OHOH92,37335.0–

13Erie County, OHOH73,29635.0–

14Cuyahoga County, OHOH1,232,92534.9–

15Fayette County, OHOH28,55234.9–

16Guernsey County, OHOH38,37934.7–

17Coshocton County, OHOH37,18834.7–

18Geauga County, OHOH95,67634.5–

19Crawford County, OHOH41,89634.5–

20Ashtabula County, OHOH96,71334.4–

21Richland County, OHOH124,89334.4–

22Carroll County, OHOH26,47534.4–

23Miami County, OHOH112,63434.3–

24Clark County, OHOH135,34034.3–

25Summit County, OHOH538,37634.3–

26Champaign County, OHOH38,82034.3–

27Hocking County, OHOH27,51234.3–

28Lake County, OHOH232,21734.3–

29Scioto County, OHOH71,36534.3–

30Highland County, OHOH43,82334.2–

31Lawrence County, OHOH55,71034.2–

32Knox County, OHOH64,00234.1–

33Morgan County, OHOH13,62634.1–

34Wyandot County, OHOH21,56734.0–

35Van Wert County, OHOH29,01334.0–

36Jackson County, OHOH32,81734.0–

37Darke County, OHOH51,52033.9–

38Ross County, OHOH76,42933.8–

39Preble County, OHOH40,66433.7–

40Noble County, OHOH14,27633.6–

41Logan County, OHOH46,30233.6–

42Fairfield County, OHOH169,75233.6–

43Licking County, OHOH185,56433.6–

44Marion County, OHOH65,11533.6–

45Vinton County, OHOH12,64533.5–

46Gallia County, OHOH29,07233.5–

47Muskingum County, OHOH87,01433.4–

48Montgomery County, OHOH539,59833.4–

49Delaware County, OHOH242,03233.4–

50Williams County, OHOH36,54933.4–

51Medina County, OHOH185,02533.3–

52Ashland County, OHOH52,52333.2–

53Sandusky County, OHOH58,65533.2–

54Henry County, OHOH27,59833.1–

55Hancock County, OHOH75,03433.1–

56Morrow County, OHOH36,30533.0–

57Pike County, OHOH27,06133.0–

58Allen County, OHOH100,88133.0–

59Union County, OHOH73,44632.9–

60Auglaize County, OHOH45,90932.8–

61Pickaway County, OHOH62,97832.8–

62Adams County, OHOH27,86532.8–

63Brown County, OHOH44,39732.8–

64Clinton County, OHOH42,30132.8–

65Hamilton County, OHOH838,41832.8–

66Lorain County, OHOH323,21932.8–

67Warren County, OHOH257,18132.8–

68Defiance County, OHOH38,29232.7–

69Fulton County, OHOH41,85332.7–

70Perry County, OHOH35,91832.6–

71Seneca County, OHOH54,52232.6–

72Lucas County, OHOH423,34732.6–

73Madison County, OHOH46,98532.4–

74Greene County, OHOH174,32232.4–

75Huron County, OHOH58,25032.2–

76Wayne County, OHOH116,75832.2–

77Paulding County, OHOH18,72732.0–

78Mercer County, OHOH42,73731.9–

79Hardin County, OHOH30,07231.7–

80Shelby County, OHOH48,06531.7–

81Butler County, OHOH400,12831.5–

82Clermont County, OHOH216,97731.2–

83Franklin County, OHOH1,361,53630.9–

84Putnam County, OHOH34,38030.6–

85Portage County, OHOH163,40430.2–

86Wood County, OHOH134,17629.3–

87Holmes County, OHOH44,97027.7–

88Athens County, OHOH63,19725.5–

SHOWING 1–88 OF 88

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