RANKING · 2024 ACS · 115 SHOWN OF 115

Oldest by median age, Missouri counties

Missouri counties ranked by median age of residents (2024 ACS). This list covers the 115 counties in Missouri that qualify, ranked against each other statewide.

Flip the list · Youngest by median age, US counties →

MissouriAll 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 2000

01Hickory County, MOMO9,04455.2+11%

02Stone County, MOMO32,50354.6+24%

03Benton County, MOMO20,53654.5+18%

04Camden County, MOMO44,04753.2+18%

05Ozark County, MOMO9,17251.4+18%

06Wayne County, MOMO10,78248.6+14%

07Worth County, MOMO1,91448.5+16%

08Holt County, MOMO4,20047.4+13%

09Dade County, MOMO7,80447.0+13%

10Gasconade County, MOMO14,78446.8+16%

11Atchison County, MOMO5,17546.7+12%

12Reynolds County, MOMO5,99246.1+13%

13St. Clair County, MOMO9,97646.1+5%

14Putnam County, MOMO4,54645.9+10%

15Ralls County, MOMO10,44445.9+17%

16Monroe County, MOMO8,95945.7+16%

17Douglas County, MOMO12,34245.5+13%

18Morgan County, MOMO22,41845.4+7%

19Maries County, MOMO8,39744.9+17%

20Shannon County, MOMO7,28544.9+16%

21Iron County, MOMO9,31844.8+13%

22Chariton County, MOMO7,37744.7+5%

23Bollinger County, MOMO10,64644.5+17%

24Oregon County, MOMO8,70944.5+9%

25Sullivan County, MOMO5,73844.1+13%

26Henry County, MOMO22,67143.7+9%

27Carroll County, MOMO8,41743.6+9%

28Montgomery County, MOMO11,59043.6+11%

29Clark County, MOMO6,47543.5+11%

30Dent County, MOMO14,58443.5+10%

31Macon County, MOMO15,19043.5+8%

32Barry County, MOMO36,20043.4+14%

33Ste. Genevieve County, MOMO18,68943.3+15%

34Caldwell County, MOMO9,01243.2+11%

35Crawford County, MOMO22,92943.0+13%

36Cedar County, MOMO14,88843.0+2%

37Texas County, MOMO25,99442.9+6%

38Shelby County, MOMO5,87042.7+6%

39Taney County, MOMO57,00142.6+10%

40Andrew County, MOMO18,24142.5+12%

41Mercer County, MOMO3,40442.4+0%

42DeKalb County, MOMO9,79542.2+12%

43Perry County, MOMO19,09342.2+15%

44Linn County, MOMO11,81542.1+4%

45Stoddard County, MOMO28,28442.0+7%

46Clinton County, MOMO21,66142.0+11%

47Ray County, MOMO23,39841.9+13%

48Vernon County, MOMO19,94641.9+13%

49Franklin County, MOMO108,09041.8+17%

50Harrison County, MOMO8,28141.8+0%

51Dallas County, MOMO18,02541.7+10%

52Bates County, MOMO16,51241.4+8%

53Miller County, MOMO25,81741.3+11%

54New Madrid County, MOMO15,08641.3+10%

55Barton County, MOMO11,79541.1+10%

56Madison County, MOMO12,85841.1+5%

57Mississippi County, MOMO12,00341.1+10%

58Osage County, MOMO13,61141.1+14%

59Wright County, MOMO19,67141.1+9%

60Lafayette County, MOMO33,53140.9+8%

61Warren County, MOMO39,01640.8+9%

62Ripley County, MOMO10,71740.7+3%

63Washington County, MOMO23,81040.7+16%

64Grundy County, MOMO9,74440.6−2%

65Cooper County, MOMO17,13640.5+15%

66Cass County, MOMO115,85940.4+13%

67Daviess County, MOMO8,55840.3+4%

68Howell County, MOMO40,79840.3+5%

69Jefferson County, MOMO233,13240.3+15%

70St. Louis County, MOMO990,91140.3+7%

71Audrain County, MOMO24,52840.2+6%

72Gentry County, MOMO6,38440.2+0%

73Newton County, MOMO62,26340.2+8%

74Knox County, MOMO3,72840.1−4%

75Randolph County, MOMO24,51340.0+8%

76Cole County, MOMO77,90839.9+12%

77Livingston County, MOMO14,70839.8+0%

78St. Charles County, MOMO426,49939.8+16%

79Dunklin County, MOMO26,85539.7+5%

80Scott County, MOMO37,97539.7+10%

81Marion County, MOMO28,52539.6+7%

82Pike County, MOMO17,95539.6+5%

83Butler County, MOMO41,90439.5+2%

84St. Francois County, MOMO67,80939.5+6%

85Callaway County, MOMO45,76539.4+14%

86Christian County, MOMO96,72539.2+14%

87Laclede County, MOMO36,94339.2+7%

88Schuyler County, MOMO4,14039.2−4%

89Platte County, MOMO114,40039.1+9%

90Howard County, MOMO10,18039.0+6%

91Carter County, MOMO5,41838.9+0%

92Buchanan County, MOMO83,54038.9+8%

93Lawrence County, MOMO39,40138.8+5%

94Moniteau County, MOMO15,42838.4+7%

95McDonald County, MOMO23,99238.2+11%

96Pettis County, MOMO44,25438.2+5%

97Polk County, MOMO33,60438.1+9%

98Pemiscot County, MOMO14,46538.1+11%

99Clay County, MOMO265,03237.9+8%

100Lewis County, MOMO9,87937.6+4%

101Lincoln County, MOMO66,67637.5+9%

102Cape Girardeau County, MOMO83,99937.1+5%

103Jackson County, MOMO732,99437.0+5%

104Webster County, MOMO43,05437.0+7%

105Jasper County, MOMO127,42836.8+5%

106St. Louis, MOMO278,14436.8+9%

107Scotland County, MOMO4,79636.5−2%

108Greene County, MOMO309,28636.4+4%

109Phelps County, MOMO45,24735.8+3%

110Saline County, MOMO23,26535.3−5%

111Nodaway County, MOMO20,17433.7+12%

112Boone County, MOMO191,74632.7+11%

113Johnson County, MOMO56,67031.5+11%

114Adair County, MOMO25,68430.2+8%

115Pulaski County, MOMO54,44227.8−2%

SHOWING 1–115 OF 115

Download CSV (full list, 115 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES