RANKING · 1990 CENSUS · 88 SHOWN OF 88

Youngest by median age, Ohio counties · 1990

Ohio counties with the youngest median age (1990 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

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 –

01Athens County, OHOH63,19725.5–

02Holmes County, OHOH44,97027.7–

03Wood County, OHOH134,17629.3–

04Portage County, OHOH163,40430.2–

05Putnam County, OHOH34,38030.6–

06Franklin County, OHOH1,361,53630.9–

07Clermont County, OHOH216,97731.2–

08Butler County, OHOH400,12831.5–

09Shelby County, OHOH48,06531.7–

10Hardin County, OHOH30,07231.7–

11Mercer County, OHOH42,73731.9–

12Paulding County, OHOH18,72732.0–

13Wayne County, OHOH116,75832.2–

14Huron County, OHOH58,25032.2–

15Greene County, OHOH174,32232.4–

16Madison County, OHOH46,98532.4–

17Lucas County, OHOH423,34732.6–

18Seneca County, OHOH54,52232.6–

19Perry County, OHOH35,91832.6–

20Fulton County, OHOH41,85332.7–

21Defiance County, OHOH38,29232.7–

22Warren County, OHOH257,18132.8–

23Lorain County, OHOH323,21932.8–

24Hamilton County, OHOH838,41832.8–

25Clinton County, OHOH42,30132.8–

26Brown County, OHOH44,39732.8–

27Adams County, OHOH27,86532.8–

28Pickaway County, OHOH62,97832.8–

29Auglaize County, OHOH45,90932.8–

30Union County, OHOH73,44632.9–

31Allen County, OHOH100,88133.0–

32Pike County, OHOH27,06133.0–

33Morrow County, OHOH36,30533.0–

34Hancock County, OHOH75,03433.1–

35Henry County, OHOH27,59833.1–

36Sandusky County, OHOH58,65533.2–

37Ashland County, OHOH52,52333.2–

38Medina County, OHOH185,02533.3–

39Williams County, OHOH36,54933.4–

40Delaware County, OHOH242,03233.4–

41Montgomery County, OHOH539,59833.4–

42Muskingum County, OHOH87,01433.4–

43Gallia County, OHOH29,07233.5–

44Vinton County, OHOH12,64533.5–

45Marion County, OHOH65,11533.6–

46Licking County, OHOH185,56433.6–

47Fairfield County, OHOH169,75233.6–

48Logan County, OHOH46,30233.6–

49Noble County, OHOH14,27633.6–

50Preble County, OHOH40,66433.7–

51Ross County, OHOH76,42933.8–

52Darke County, OHOH51,52033.9–

53Jackson County, OHOH32,81734.0–

54Van Wert County, OHOH29,01334.0–

55Wyandot County, OHOH21,56734.0–

56Morgan County, OHOH13,62634.1–

57Knox County, OHOH64,00234.1–

58Lawrence County, OHOH55,71034.2–

59Highland County, OHOH43,82334.2–

60Scioto County, OHOH71,36534.3–

61Lake County, OHOH232,21734.3–

62Hocking County, OHOH27,51234.3–

63Champaign County, OHOH38,82034.3–

64Summit County, OHOH538,37634.3–

65Clark County, OHOH135,34034.3–

66Miami County, OHOH112,63434.3–

67Carroll County, OHOH26,47534.4–

68Richland County, OHOH124,89334.4–

69Ashtabula County, OHOH96,71334.4–

70Crawford County, OHOH41,89634.5–

71Geauga County, OHOH95,67634.5–

72Coshocton County, OHOH37,18834.7–

73Guernsey County, OHOH38,37934.7–

74Fayette County, OHOH28,55234.9–

75Cuyahoga County, OHOH1,232,92534.9–

76Erie County, OHOH73,29635.0–

77Tuscarawas County, OHOH92,37335.0–

78Washington County, OHOH58,38935.0–

79Columbiana County, OHOH99,37735.0–

80Stark County, OHOH373,77135.0–

81Meigs County, OHOH21,58735.1–

82Trumbull County, OHOH198,97235.6–

83Mahoning County, OHOH224,70636.3–

84Monroe County, OHOH12,99436.4–

85Ottawa County, OHOH39,48136.5–

86Harrison County, OHOH14,07036.7–

87Jefferson County, OHOH63,59737.7–

88Belmont County, OHOH64,43437.9–

SHOWING 1–88 OF 88

Download CSV (full list, 88 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS