RANKING · 2025 ESTIMATES · 115 SHOWN OF 115

Largest by population, Missouri counties

The most populous Missouri counties as of the 2025 population estimates. This list covers the 115 counties in Missouri that qualify, ranked against each other statewide.

MissouriAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDFastest growing Fastest shrinking Most population gained Most population lost Most densely populated Most sparsely populated

YEAR1990 2000 2010 2020 2025

RANKPLACESTATETOTAL POPULATIONVS 2000

01St. Louis County, MOMO990,911−2%

02Jackson County, MOMO732,994+12%

03St. Charles County, MOMO426,499+50%

04Greene County, MOMO309,286+29%

05St. Louis, MOMO278,144−20%

06Clay County, MOMO265,032+44%

07Jefferson County, MOMO233,132+18%

08Boone County, MOMO191,746+42%

09Jasper County, MOMO127,428+22%

10Cass County, MOMO115,859+41%

11Platte County, MOMO114,400+55%

12Franklin County, MOMO108,090+15%

13Christian County, MOMO96,725+78%

14Cape Girardeau County, MOMO83,999+22%

15Buchanan County, MOMO83,540−3%

16Cole County, MOMO77,908+9%

17St. Francois County, MOMO67,809+22%

18Lincoln County, MOMO66,676+71%

19Newton County, MOMO62,263+18%

20Taney County, MOMO57,001+44%

21Johnson County, MOMO56,670+17%

22Pulaski County, MOMO54,442+32%

23Callaway County, MOMO45,765+12%

24Phelps County, MOMO45,247+14%

25Pettis County, MOMO44,254+12%

26Camden County, MOMO44,047+19%

27Webster County, MOMO43,054+39%

28Butler County, MOMO41,904+3%

29Howell County, MOMO40,798+10%

30Lawrence County, MOMO39,401+12%

31Warren County, MOMO39,016+59%

32Scott County, MOMO37,975−6%

33Laclede County, MOMO36,943+14%

34Barry County, MOMO36,200+6%

35Polk County, MOMO33,604+24%

36Lafayette County, MOMO33,531+2%

37Stone County, MOMO32,503+13%

38Marion County, MOMO28,525+1%

39Stoddard County, MOMO28,284−5%

40Dunklin County, MOMO26,855−19%

41Texas County, MOMO25,994+13%

42Miller County, MOMO25,817+10%

43Adair County, MOMO25,684+3%

44Audrain County, MOMO24,528−5%

45Randolph County, MOMO24,513−1%

46McDonald County, MOMO23,992+11%

47Washington County, MOMO23,810+2%

48Ray County, MOMO23,398+0%

49Saline County, MOMO23,265−2%

50Crawford County, MOMO22,929+1%

51Henry County, MOMO22,671+3%

52Morgan County, MOMO22,418+16%

53Clinton County, MOMO21,661+14%

54Benton County, MOMO20,536+20%

55Nodaway County, MOMO20,174−8%

56Vernon County, MOMO19,946−2%

57Wright County, MOMO19,671+10%

58Perry County, MOMO19,093+5%

59Ste. Genevieve County, MOMO18,689+5%

60Andrew County, MOMO18,241+11%

61Dallas County, MOMO18,025+15%

62Pike County, MOMO17,955−2%

63Cooper County, MOMO17,136+3%

64Bates County, MOMO16,512−1%

65Moniteau County, MOMO15,428+4%

66Macon County, MOMO15,190−4%

67New Madrid County, MOMO15,086−24%

68Cedar County, MOMO14,888+8%

69Gasconade County, MOMO14,784−4%

70Livingston County, MOMO14,708+1%

71Dent County, MOMO14,584−2%

72Pemiscot County, MOMO14,465−28%

73Osage County, MOMO13,611+4%

74Madison County, MOMO12,858+9%

75Douglas County, MOMO12,342−6%

76Mississippi County, MOMO12,003−11%

77Linn County, MOMO11,815−14%

78Barton County, MOMO11,795−6%

79Montgomery County, MOMO11,590−4%

80Wayne County, MOMO10,782−19%

81Ripley County, MOMO10,717−21%

82Bollinger County, MOMO10,646−11%

83Ralls County, MOMO10,444+8%

84Howard County, MOMO10,180−0%

85St. Clair County, MOMO9,976+3%

86Lewis County, MOMO9,879−6%

87DeKalb County, MOMO9,795−16%

88Grundy County, MOMO9,744−7%

89Iron County, MOMO9,318−13%

90Ozark County, MOMO9,172−4%

91Hickory County, MOMO9,044+1%

92Caldwell County, MOMO9,012+0%

93Monroe County, MOMO8,959−4%

94Oregon County, MOMO8,709−16%

95Daviess County, MOMO8,558+7%

96Carroll County, MOMO8,417−18%

97Maries County, MOMO8,397−6%

98Harrison County, MOMO8,281−6%

99Dade County, MOMO7,804−2%

100Chariton County, MOMO7,377−13%

101Shannon County, MOMO7,285−12%

102Clark County, MOMO6,475−13%

103Gentry County, MOMO6,384−7%

104Reynolds County, MOMO5,992−10%

105Shelby County, MOMO5,870−14%

106Sullivan County, MOMO5,738−21%

107Carter County, MOMO5,418−9%

108Atchison County, MOMO5,175−20%

109Scotland County, MOMO4,796−4%

110Putnam County, MOMO4,546−13%

111Holt County, MOMO4,200−22%

112Schuyler County, MOMO4,140−1%

113Knox County, MOMO3,728−15%

114Mercer County, MOMO3,404−9%

115Worth County, MOMO1,914−20%

SHOWING 1–115 OF 115

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU POPULATION ESTIMATES