RANKING · 2020 CENSUS · 115 SHOWN OF 115

Most population gained, Missouri counties · 2020

Missouri counties that added the most residents from the 2010 census to 2020, by raw count of people rather than percentage. This list covers the 115 counties in Missouri that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01St. Charles County, MOMO426,499+44,777−37%

02Jackson County, MOMO732,994+43,046+99%

03Clay County, MOMO265,032+31,396+3%

04Greene County, MOMO309,286+23,741−27%

05Boone County, MOMO191,746+20,968−9%

06Platte County, MOMO114,400+17,396+9%

07Christian County, MOMO96,725+11,420−47%

08Cass County, MOMO115,859+8,346−54%

09Jefferson County, MOMO233,132+8,006−70%

10Lincoln County, MOMO66,676+7,008−30%

11Cape Girardeau County, MOMO83,999+6,036−15%

12Jasper County, MOMO127,428+5,357−62%

13St. Louis County, MOMO990,911+5,171−77%

14Taney County, MOMO57,001+4,391−69%

15Franklin County, MOMO108,090+3,190−76%

16Warren County, MOMO39,016+3,019−40%

17Webster County, MOMO43,054+2,883−60%

18Pulaski County, MOMO54,442+1,681−1284%

19St. Francois County, MOMO67,809+1,563−77%

20Johnson County, MOMO56,670+1,418−75%

21Cole County, MOMO77,908+1,289−84%

22Andrew County, MOMO18,241+844−55%

23Pettis County, MOMO44,254+779−80%

24Newton County, MOMO62,263+534−93%

25Laclede County, MOMO36,943+468−91%

26Morgan County, MOMO22,418+441−88%

27Clinton County, MOMO21,661+441−82%

28Madison County, MOMO12,858+400−41%

29Polk County, MOMO33,604+382−93%

30Benton County, MOMO20,536+338−90%

31Ste. Genevieve County, MOMO18,689+334−81%

32Dallas County, MOMO18,025+294−90%

33McDonald County, MOMO23,992+220−95%

34Cedar County, MOMO14,888+206−87%

35Ralls County, MOMO10,444+188−84%

36Howard County, MOMO10,180+7−99%

37Daviess County, MOMO8,558-3−102%

38Perry County, MOMO19,093-15−101%

39Miller County, MOMO25,817-26−101%

40Saline County, MOMO23,265-37−116%

41Callaway County, MOMO45,765-49−101%

42Scotland County, MOMO4,796-127−179%

43Moniteau County, MOMO15,428-134−105%

44Monroe County, MOMO8,959-174−184%

45Lewis County, MOMO9,879-179−169%

46Worth County, MOMO1,914-198+241%

47Mercer County, MOMO3,404-247−826%

48Marion County, MOMO28,525-256−142%

49Shelby County, MOMO5,870-270+89%

50Adair County, MOMO25,684-293−173%

51Putnam County, MOMO4,546-298−307%

52Dade County, MOMO7,804-314−166%

53Henry County, MOMO22,671-326−117%

54Ray County, MOMO23,398-336−124%

55Macon County, MOMO15,190-357−186%

56Atchison County, MOMO5,175-380−63%

57Knox County, MOMO3,728-387+220%

58Lafayette County, MOMO33,531-397−121%

59Schuyler County, MOMO4,140-399+505%

60Chariton County, MOMO7,377-423−45%

61Gasconade County, MOMO14,784-428−132%

62Grundy County, MOMO9,744-453+336%

63Cooper County, MOMO17,136-498−127%

64Clark County, MOMO6,475-505+285%

65Phelps County, MOMO45,247-518−111%

66St. Clair County, MOMO9,976-521−144%

67Audrain County, MOMO24,528-567−125%

68Gentry County, MOMO6,384-576−4531%

69Reynolds County, MOMO5,992-600−2243%

70Osage County, MOMO13,611-604−158%

71Caldwell County, MOMO9,012-609−203%

72Wright County, MOMO19,671-627−152%

73Lawrence County, MOMO39,401-633−113%

74Livingston County, MOMO14,708-638+1776%

75Howell County, MOMO40,798-650−111%

76Butler County, MOMO41,904-664−132%

77Holt County, MOMO4,200-689+1%

78Randolph County, MOMO24,513-698−338%

79Sullivan County, MOMO5,738-715−180%

80Maries County, MOMO8,397-744−180%

81Barton County, MOMO11,795-765−162%

82Carroll County, MOMO8,417-800+73%

83Harrison County, MOMO8,281-800−310%

84Linn County, MOMO11,815-887+577%

85Montgomery County, MOMO11,590-914−217%

86Pike County, MOMO17,955-929−139%

87Bates County, MOMO16,512-1,007−162%

88Carter County, MOMO5,418-1,063−350%

89Barry County, MOMO36,200-1,063−116%

90Iron County, MOMO9,318-1,093+3669%

91Stone County, MOMO32,503-1,126−112%

92Scott County, MOMO37,975-1,132−208%

93Ozark County, MOMO9,172-1,170−224%

94Dent County, MOMO14,584-1,236−201%

95Camden County, MOMO44,047-1,257−113%

96Stoddard County, MOMO28,284-1,296−260%

97Hickory County, MOMO9,044-1,348−184%

98Shannon County, MOMO7,285-1,410−298%

99Vernon County, MOMO19,946-1,452−203%

100Texas County, MOMO25,994-1,521−200%

101Crawford County, MOMO22,929-1,640−145%

102Washington County, MOMO23,810-1,681−157%

103Mississippi County, MOMO12,003-1,781+75%

104Bollinger County, MOMO10,646-1,796−227%

105DeKalb County, MOMO9,795-1,863−214%

106Douglas County, MOMO12,342-2,106−274%

107Nodaway County, MOMO20,174-2,129−1149%

108Oregon County, MOMO8,709-2,246−357%

109New Madrid County, MOMO15,086-2,522+116%

110Wayne County, MOMO10,782-2,547−248%

111Pemiscot County, MOMO14,465-2,635+41%

112Ripley County, MOMO10,717-3,421−384%

113Dunklin County, MOMO26,855-3,670−8635%

114Buchanan County, MOMO83,540-4,408−251%

115St. Louis, MOMO278,144-17,716−63%

SHOWING 1–115 OF 115

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