RANKING · 2010 CENSUS · 115 SHOWN OF 115

Most densely populated, Missouri counties · 2010

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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SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Fastest shrinking Most sparsely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01St. Louis, MOMO278,1445,173−8%

02St. Louis County, MOMO990,9111,966−2%

03Jackson County, MOMO732,9941,115+3%

04St. Charles County, MOMO426,499643+27%

05Clay County, MOMO265,032558+21%

06Greene County, MOMO309,286407+14%

07Jefferson County, MOMO233,132333+10%

08Boone County, MOMO191,746237+20%

09Buchanan County, MOMO83,540218+4%

10Platte County, MOMO114,400213+21%

11Cole County, MOMO77,908194+6%

12Jasper County, MOMO127,428184+12%

13St. Francois County, MOMO67,809145+17%

14Cass County, MOMO115,859143+21%

15Christian County, MOMO96,725138+43%

16Cape Girardeau County, MOMO83,999131+10%

17Franklin County, MOMO108,090110+8%

18Pulaski County, MOMO54,44296+27%

19Scott County, MOMO37,97593−3%

20Newton County, MOMO62,26393+10%

21Lincoln County, MOMO66,67684+35%

22Taney County, MOMO57,00182+30%

23Warren County, MOMO39,01676+33%

24Stone County, MOMO32,50369+12%

25Phelps County, MOMO45,24767+13%

26Camden County, MOMO44,04767+19%

27Marion County, MOMO28,52566+2%

28Johnson County, MOMO56,67063+9%

29Lawrence County, MOMO39,40163+10%

30Pettis County, MOMO44,25462+7%

31Butler County, MOMO41,90462+5%

32Webster County, MOMO43,05461+17%

33Dunklin County, MOMO26,85559−4%

34Lafayette County, MOMO33,53153+1%

35Callaway County, MOMO45,76553+9%

36Randolph County, MOMO24,51353+3%

37Clinton County, MOMO21,66150+9%

38Polk County, MOMO33,60449+15%

39Laclede County, MOMO36,94347+9%

40Barry County, MOMO36,20046+5%

41Adair County, MOMO25,68445+3%

42Howell County, MOMO40,79844+8%

43McDonald County, MOMO23,99243+6%

44Miller County, MOMO25,81742+5%

45Ray County, MOMO23,39841+1%

46Perry County, MOMO19,09340+5%

47Andrew County, MOMO18,24140+5%

48Moniteau County, MOMO15,42838+5%

49Pemiscot County, MOMO14,46537−9%

50Audrain County, MOMO24,52837−1%

51Stoddard County, MOMO28,28436+1%

52Ste. Genevieve County, MOMO18,68936+2%

53Mississippi County, MOMO12,00335+7%

54Morgan County, MOMO22,41834+7%

55Crawford County, MOMO22,92933+8%

56Washington County, MOMO23,81033+8%

57Henry County, MOMO22,67132+1%

58Cooper County, MOMO17,13631+6%

59Dallas County, MOMO18,02531+7%

60Saline County, MOMO23,26531−2%

61DeKalb County, MOMO9,79531+11%

62Cedar County, MOMO14,88829+2%

63Gasconade County, MOMO14,78429−1%

64Livingston County, MOMO14,70829+4%

65New Madrid County, MOMO15,08628−4%

66Pike County, MOMO17,95528+1%

67Wright County, MOMO19,67128+5%

68Benton County, MOMO20,53627+11%

69Nodaway County, MOMO20,17427+7%

70Vernon County, MOMO19,94626+3%

71Madison County, MOMO12,85825+4%

72Hickory County, MOMO9,04424+8%

73Grundy County, MOMO9,74424−2%

74Osage County, MOMO13,61123+6%

75Montgomery County, MOMO11,59023+1%

76Ripley County, MOMO10,71722+4%

77Caldwell County, MOMO9,01222+5%

78Texas County, MOMO25,99422+13%

79Howard County, MOMO10,18022−1%

80Ralls County, MOMO10,44422+6%

81Barton County, MOMO11,79521−1%

82Dent County, MOMO14,58421+5%

83Linn County, MOMO11,81521−7%

84Bates County, MOMO16,51220+2%

85Lewis County, MOMO9,87920−3%

86Bollinger County, MOMO10,64620+3%

87Macon County, MOMO15,19019−1%

88Iron County, MOMO9,31819−1%

89Wayne County, MOMO10,78218+2%

90Maries County, MOMO8,39717+3%

91Douglas County, MOMO12,34217+5%

92Dade County, MOMO7,80416−1%

93Daviess County, MOMO8,55815+5%

94St. Clair County, MOMO9,97615+2%

95Schuyler County, MOMO4,14014+6%

96Clark County, MOMO6,47514−4%

97Oregon County, MOMO8,70914+5%

98Gentry County, MOMO6,38414−2%

99Monroe County, MOMO8,95914−5%

100Carroll County, MOMO8,41713−10%

101Ozark County, MOMO9,17213+2%

102Shelby County, MOMO5,87013−6%

103Harrison County, MOMO8,28112+1%

104Carter County, MOMO5,41812+5%

105Scotland County, MOMO4,79611−3%

106Holt County, MOMO4,20011−8%

107Chariton County, MOMO7,37710−7%

108Atchison County, MOMO5,17510−12%

109Sullivan County, MOMO5,73810−7%

110Putnam County, MOMO4,54610−5%

111Shannon County, MOMO7,2858+1%

112Mercer County, MOMO3,4048+1%

113Reynolds County, MOMO5,9928+0%

114Knox County, MOMO3,7288−5%

115Worth County, MOMO1,9148−9%

SHOWING 1–115 OF 115

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