RANKING · 1990 CENSUS · 105 SHOWN OF 105

Youngest by median age, Kansas counties · 1990

Kansas counties with the youngest median age (1990 ACS). This list covers the 105 counties in Kansas that qualify, ranked against each other statewide. The median across all 105 is 36.6.

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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 –

01Riley County, KSKS72,59823.8–

02Douglas County, KSKS120,92025.9–

03Geary County, KSKS36,33826.4–

04Finney County, KSKS37,50527.2–

05Seward County, KSKS21,07329.0–

06Lyon County, KSKS32,26629.4–

07Grant County, KSKS7,02830.1–

08Ford County, KSKS33,99330.2–

09Haskell County, KSKS3,59930.3–

10Kearny County, KSKS3,88830.8–

11Ellis County, KSKS29,07531.2–

12Stanton County, KSKS1,98631.3–

13Wyandotte County, KSKS170,59731.8–

14Sedgwick County, KSKS538,43331.9–

15Gray County, KSKS5,65232.2–

16Thomas County, KSKS7,72532.5–

17Morton County, KSKS2,47032.8–

18Stevens County, KSKS4,98432.9–

19Pottawatomie County, KSKS27,18632.9–

20Johnson County, KSKS636,90632.9–

21Leavenworth County, KSKS84,59033.2–

22Greeley County, KSKS1,18233.3–

23Franklin County, KSKS26,29933.4–

24Saline County, KSKS53,37733.5–

25Atchison County, KSKS16,17233.5–

26Wichita County, KSKS2,03133.8–

27Butler County, KSKS69,48433.9–

28Shawnee County, KSKS178,60733.9–

29Miami County, KSKS36,24034.3–

30Crawford County, KSKS39,00834.5–

31Wallace County, KSKS1,44134.6–

32McPherson County, KSKS30,06434.7–

33Harvey County, KSKS33,58034.8–

34Barton County, KSKS24,79034.8–

35Jackson County, KSKS13,43834.9–

36Scott County, KSKS4,81535.0–

37Cowley County, KSKS34,38235.0–

38Sumner County, KSKS22,31235.0–

39Labette County, KSKS19,68535.0–

40Reno County, KSKS61,53935.1–

41Doniphan County, KSKS7,59435.2–

42Jefferson County, KSKS18,29635.2–

43Allen County, KSKS12,30235.5–

44Nemaha County, KSKS10,05435.5–

45Sherman County, KSKS5,76335.6–

46Cherokee County, KSKS19,10535.7–

47Osage County, KSKS15,69336.0–

48Wabaunsee County, KSKS7,01836.2–

49Montgomery County, KSKS30,17736.3–

50Coffey County, KSKS8,46736.3–

51Neosho County, KSKS15,63736.4–

52Meade County, KSKS3,85236.6–

53Brown County, KSKS9,10436.6–

54Bourbon County, KSKS14,31936.8–

55Hodgeman County, KSKS1,61936.8–

56Rice County, KSKS9,26636.8–

57Pratt County, KSKS9,11737.0–

58Kingman County, KSKS7,02937.2–

59Dickinson County, KSKS18,63737.4–

60Mitchell County, KSKS5,59037.5–

61Sheridan County, KSKS2,42737.6–

62Pawnee County, KSKS5,99137.6–

63Barber County, KSKS4,08337.7–

64Logan County, KSKS2,66137.8–

65Lane County, KSKS1,50837.8–

66Ellsworth County, KSKS6,25738.0–

67Gove County, KSKS2,63138.0–

68Anderson County, KSKS8,01838.2–

69Ness County, KSKS2,61738.2–

70Hamilton County, KSKS2,50038.3–

71Kiowa County, KSKS2,43238.3–

72Stafford County, KSKS4,00538.4–

73Marshall County, KSKS9,85238.5–

74Trego County, KSKS2,74038.6–

75Rawlins County, KSKS2,43138.6–

76Rooks County, KSKS4,64638.6–

77Norton County, KSKS5,28838.8–

78Graham County, KSKS2,37139.0–

79Cloud County, KSKS8,83339.1–

80Marion County, KSKS11,63439.1–

81Ottawa County, KSKS5,74439.1–

82Wilson County, KSKS8,29939.4–

83Linn County, KSKS9,95039.4–

84Chase County, KSKS2,57239.5–

85Harper County, KSKS5,37039.5–

86Morris County, KSKS5,34839.7–

87Decatur County, KSKS2,71639.8–

88Edwards County, KSKS2,64039.8–

89Clay County, KSKS7,99039.8–

90Russell County, KSKS6,58140.4–

91Phillips County, KSKS4,72840.7–

92Clark County, KSKS1,90040.8–

93Washington County, KSKS5,53340.9–

94Greenwood County, KSKS5,82641.4–

95Comanche County, KSKS1,67341.8–

96Cheyenne County, KSKS2,60441.8–

97Lincoln County, KSKS2,86141.9–

98Woodson County, KSKS3,11842.0–

99Jewell County, KSKS2,83042.5–

100Osborne County, KSKS3,28542.9–

101Rush County, KSKS2,84543.1–

102Chautauqua County, KSKS3,32143.8–

103Republic County, KSKS4,64044.0–

104Smith County, KSKS3,56645.5–

105Elk County, KSKS2,45846.7–

SHOWING 1–105 OF 105

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