RANKING · 2000 CENSUS · 115 SHOWN OF 115

Most densely populated, Missouri counties · 2000

Missouri counties ranked by residents per square mile (2023). This list covers the 115 counties in Missouri that qualify, ranked against each other statewide.

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YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01St. Louis, MOMO278,1445,641+0%

02St. Louis County, MOMO990,9112,001+0%

03Jackson County, MOMO732,9941,083+0%

04St. Charles County, MOMO426,499506+0%

05Clay County, MOMO265,032463+0%

06Greene County, MOMO309,286356+0%

07Jefferson County, MOMO233,132302+0%

08Buchanan County, MOMO83,540211+0%

09Boone County, MOMO191,746198+0%

10Cole County, MOMO77,908182+0%

11Platte County, MOMO114,400176+0%

12Jasper County, MOMO127,428164+0%

13St. Francois County, MOMO67,809123+0%

14Cape Girardeau County, MOMO83,999119+0%

15Cass County, MOMO115,859118+0%

16Franklin County, MOMO108,090102+0%

17Christian County, MOMO96,72596+0%

18Scott County, MOMO37,97596+0%

19Newton County, MOMO62,26384+0%

20Pulaski County, MOMO54,44275+0%

21Marion County, MOMO28,52565+0%

22Taney County, MOMO57,00163+0%

23Lincoln County, MOMO66,67662+0%

24Stone County, MOMO32,50362+0%

25Dunklin County, MOMO26,85561+0%

26Phelps County, MOMO45,24759+0%

27Butler County, MOMO41,90459+0%

28Johnson County, MOMO56,67058+0%

29Pettis County, MOMO44,25458+0%

30Lawrence County, MOMO39,40158+0%

31Warren County, MOMO39,01657+0%

32Camden County, MOMO44,04756+0%

33Lafayette County, MOMO33,53152+0%

34Webster County, MOMO43,05452+0%

35Randolph County, MOMO24,51351+0%

36Callaway County, MOMO45,76549+0%

37Clinton County, MOMO21,66145+0%

38Adair County, MOMO25,68444+0%

39Barry County, MOMO36,20044+0%

40Laclede County, MOMO36,94343+0%

41Polk County, MOMO33,60442+0%

42Ray County, MOMO23,39841+0%

43Pemiscot County, MOMO14,46541+0%

44McDonald County, MOMO23,99240+0%

45Howell County, MOMO40,79840+0%

46Miller County, MOMO25,81740+0%

47Perry County, MOMO19,09338+0%

48Andrew County, MOMO18,24138+0%

49Audrain County, MOMO24,52837+0%

50Stoddard County, MOMO28,28436+0%

51Ste. Genevieve County, MOMO18,68936+0%

52Moniteau County, MOMO15,42836+0%

53Mississippi County, MOMO12,00333+0%

54Morgan County, MOMO22,41832+0%

55Henry County, MOMO22,67132+0%

56Saline County, MOMO23,26531+0%

57Washington County, MOMO23,81031+0%

58Crawford County, MOMO22,92931+0%

59Gasconade County, MOMO14,78430+0%

60Cooper County, MOMO17,13630+0%

61New Madrid County, MOMO15,08629+0%

62Dallas County, MOMO18,02529+0%

63Cedar County, MOMO14,88829+0%

64DeKalb County, MOMO9,79528+0%

65Pike County, MOMO17,95527+0%

66Livingston County, MOMO14,70827+0%

67Wright County, MOMO19,67126+0%

68Nodaway County, MOMO20,17425+0%

69Vernon County, MOMO19,94625+0%

70Benton County, MOMO20,53624+0%

71Grundy County, MOMO9,74424+0%

72Madison County, MOMO12,85824+0%

73Montgomery County, MOMO11,59023+0%

74Hickory County, MOMO9,04422+0%

75Linn County, MOMO11,81522+0%

76Howard County, MOMO10,18022+0%

77Osage County, MOMO13,61122+0%

78Ripley County, MOMO10,71721+0%

79Barton County, MOMO11,79521+0%

80Caldwell County, MOMO9,01221+0%

81Lewis County, MOMO9,87921+0%

82Ralls County, MOMO10,44420+0%

83Bates County, MOMO16,51220+0%

84Dent County, MOMO14,58420+0%

85Macon County, MOMO15,19020+0%

86Texas County, MOMO25,99420+0%

87Bollinger County, MOMO10,64619+0%

88Iron County, MOMO9,31819+0%

89Wayne County, MOMO10,78217+0%

90Maries County, MOMO8,39717+0%

91Dade County, MOMO7,80416+0%

92Douglas County, MOMO12,34216+0%

93Carroll County, MOMO8,41715+0%

94Clark County, MOMO6,47515+0%

95Monroe County, MOMO8,95914+0%

96St. Clair County, MOMO9,97614+0%

97Daviess County, MOMO8,55814+0%

98Gentry County, MOMO6,38414+0%

99Shelby County, MOMO5,87014+0%

100Schuyler County, MOMO4,14014+0%

101Oregon County, MOMO8,70913+0%

102Ozark County, MOMO9,17213+0%

103Harrison County, MOMO8,28112+0%

104Atchison County, MOMO5,17512+0%

105Carter County, MOMO5,41812+0%

106Holt County, MOMO4,20012+0%

107Scotland County, MOMO4,79611+0%

108Chariton County, MOMO7,37711+0%

109Sullivan County, MOMO5,73811+0%

110Putnam County, MOMO4,54610+0%

111Worth County, MOMO1,9149+0%

112Knox County, MOMO3,7289+0%

113Shannon County, MOMO7,2858+0%

114Mercer County, MOMO3,4048+0%

115Reynolds County, MOMO5,9928+0%

SHOWING 1–115 OF 115

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES