RANKING · 2000 CENSUS · 115 SHOWN OF 115

Oldest by median age, Missouri counties · 2000

Missouri counties ranked by median age of residents (2000 ACS). This list covers the 115 counties in Missouri that qualify, ranked against each other statewide.

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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

01Hickory County, MOMO9,04449.7−2%

02Benton County, MOMO20,53646.3+4%

03Camden County, MOMO44,04745.2+9%

04Stone County, MOMO32,50344.1+3%

05St. Clair County, MOMO9,97643.9+4%

06Ozark County, MOMO9,17243.6+4%

07Morgan County, MOMO22,41842.6+1%

08Chariton County, MOMO7,37742.5+9%

09Wayne County, MOMO10,78242.5+6%

10Mercer County, MOMO3,40442.4−1%

11Cedar County, MOMO14,88842.2+1%

12Putnam County, MOMO4,54641.9−1%

13Worth County, MOMO1,91441.9−2%

14Holt County, MOMO4,20041.8+9%

15Dade County, MOMO7,80441.7+8%

16Atchison County, MOMO5,17541.7+9%

17Harrison County, MOMO8,28141.7−2%

18Knox County, MOMO3,72841.6+1%

19Grundy County, MOMO9,74441.3+5%

20Oregon County, MOMO8,70941.0+1%

21Schuyler County, MOMO4,14040.8+5%

22Reynolds County, MOMO5,99240.7+10%

23Shelby County, MOMO5,87040.4+2%

24Texas County, MOMO25,99440.4+11%

25Gasconade County, MOMO14,78440.3+6%

26Linn County, MOMO11,81540.3+3%

27Gentry County, MOMO6,38440.2+1%

28Douglas County, MOMO12,34240.1+8%

29Macon County, MOMO15,19040.1+4%

30Carroll County, MOMO8,41740.0+5%

31Henry County, MOMO22,67140.0+4%

32Iron County, MOMO9,31839.7+7%

33Livingston County, MOMO14,70839.7+7%

34Dent County, MOMO14,58439.6+5%

35Monroe County, MOMO8,95939.4+10%

36Montgomery County, MOMO11,59039.4+6%

37Ripley County, MOMO10,71739.4+7%

38Ralls County, MOMO10,44439.3+7%

39Clark County, MOMO6,47539.2+9%

40Madison County, MOMO12,85839.1+7%

41Stoddard County, MOMO28,28439.1+6%

42Carter County, MOMO5,41838.9+9%

43Daviess County, MOMO8,55838.9+4%

44Sullivan County, MOMO5,73838.9−8%

45Caldwell County, MOMO9,01238.8+3%

46Shannon County, MOMO7,28538.8+9%

47Taney County, MOMO57,00138.8−4%

48Butler County, MOMO41,90438.7+8%

49Maries County, MOMO8,39738.5+5%

50Bates County, MOMO16,51238.4+3%

51Barry County, MOMO36,20038.2+2%

52Howell County, MOMO40,79838.2+5%

53Audrain County, MOMO24,52838.0+2%

54Dallas County, MOMO18,02537.9+3%

55Bollinger County, MOMO10,64637.9+5%

56Crawford County, MOMO22,92937.9+7%

57Lafayette County, MOMO33,53137.9+7%

58Andrew County, MOMO18,24137.8+7%

59Dunklin County, MOMO26,85537.8+5%

60DeKalb County, MOMO9,79537.7+12%

61Pike County, MOMO17,95537.7+5%

62Ste. Genevieve County, MOMO18,68937.7+11%

63Wright County, MOMO19,67137.7+7%

64Clinton County, MOMO21,66137.7+7%

65St. Louis County, MOMO990,91137.5+8%

66Scotland County, MOMO4,79637.4−4%

67Warren County, MOMO39,01637.4+11%

68New Madrid County, MOMO15,08637.4+12%

69Barton County, MOMO11,79537.3+2%

70Mississippi County, MOMO12,00337.3+9%

71Miller County, MOMO25,81737.2+9%

72St. Francois County, MOMO67,80937.2+8%

73Saline County, MOMO23,26537.2+5%

74Randolph County, MOMO24,51337.2+8%

75Marion County, MOMO28,52537.1+7%

76Ray County, MOMO23,39837.1+9%

77Newton County, MOMO62,26337.1+7%

78Vernon County, MOMO19,94637.1+4%

79Lawrence County, MOMO39,40136.9+4%

80Perry County, MOMO19,09336.8+7%

81Howard County, MOMO10,18036.7+4%

82Laclede County, MOMO36,94336.6+7%

83Pettis County, MOMO44,25436.4+5%

84Buchanan County, MOMO83,54036.1+6%

85Osage County, MOMO13,61136.1+12%

86Lewis County, MOMO9,87936.0+6%

87Scott County, MOMO37,97536.0+8%

88Moniteau County, MOMO15,42835.9+5%

89Platte County, MOMO114,40035.9+9%

90Cass County, MOMO115,85935.8+11%

91Franklin County, MOMO108,09035.8+11%

92Cole County, MOMO77,90835.5+8%

93Cape Girardeau County, MOMO83,99935.2+9%

94Cooper County, MOMO17,13635.2+3%

95Jackson County, MOMO732,99435.2+6%

96Washington County, MOMO23,81035.2+10%

97Greene County, MOMO309,28635.1+8%

98Polk County, MOMO33,60435.0+5%

99Clay County, MOMO265,03235.0+6%

100Jasper County, MOMO127,42834.9+2%

101Jefferson County, MOMO233,13234.9+14%

102Phelps County, MOMO45,24734.9+9%

103Callaway County, MOMO45,76534.7+6%

104Webster County, MOMO43,05434.6+5%

105Christian County, MOMO96,72534.5+6%

106Lincoln County, MOMO66,67634.5+9%

107Pemiscot County, MOMO14,46534.4+6%

108McDonald County, MOMO23,99234.3+1%

109St. Charles County, MOMO426,49934.3+12%

110St. Louis, MOMO278,14433.7+3%

111Nodaway County, MOMO20,17430.2+8%

112Boone County, MOMO191,74629.5+6%

113Johnson County, MOMO56,67028.5+9%

114Pulaski County, MOMO54,44228.5+6%

115Adair County, MOMO25,68427.9+2%

SHOWING 1–115 OF 115

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