Ranking of Missouri Counties By Population in 2024

Updated on June 21, 2025.

Based on the US Census Vintage data estimates, in 2024, the Population for Missouri was 6.25M. Among all Missouri counties, St. Louis County had the highest population (992.93K), followed by Jackson County (727.36K), and St. Charles County (423.73K).

The chart below shows the top 10 counties, and the table below shows the ranking of all Missouri counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

See this for other years:
Ranking of Missouri Counties By Population in 2024
St. Louis
Jackson
St. Charles
Greene
St. Louis city
Clay
Jefferson
Boone
Jasper
Cass
Ranking of Missouri Counties By Population in 2024
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Rank County Population
1 St. Louis County 992929
2 Jackson County 727362
3 St. Charles County 423726
4 Greene County 307942
5 St. Louis city 279695
6 Clay County 263370
7 Jefferson County 231888
8 Boone County 192154
9 Jasper County 126479
10 Cass County 113873
11 Platte County 113207
12 Franklin County 107256
13 Christian County 96045
14 Cape Girardeau County 83658
15 Buchanan County 83574
16 Cole County 77625
17 St. Francois County 67503
18 Lincoln County 65888
19 Newton County 61519
20 Taney County 56744
21 Johnson County 55880
22 Pulaski County 53964
23 Phelps County 45672
24 Callaway County 45126
25 Camden County 44135
26 Pettis County 43791
27 Webster County 42041
28 Butler County 41814
29 Howell County 40762
30 Lawrence County 39151
31 Warren County 38478
32 Scott County 37957
33 Laclede County 36738
34 Barry County 35618
35 Lafayette County 33511
36 Polk County 33070
37 Stone County 32630
38 Stoddard County 28438
39 Marion County 28425
40 Dunklin County 27002
41 Texas County 25715
42 Miller County 25668
43 Adair County 25660
44 Audrain County 24304
45 Randolph County 24077
46 McDonald County 24054
47 Washington County 23583
48 Saline County 23325
49 Ray County 23199
50 Crawford County 22808
51 Henry County 22575
52 Morgan County 22399
53 Clinton County 21721
54 Benton County 20614
55 Nodaway County 20503
56 Vernon County 19787
57 Wright County 19505
58 Perry County 19100
59 Ste. Genevieve County 18546
60 Andrew County 18091
61 Pike County 17961
62 Dallas County 17877
63 Cooper County 17122
64 Bates County 16394
65 Moniteau County 15294
66 New Madrid County 15212
67 Macon County 15177
68 Cedar County 15023
69 Dent County 14721
70 Livingston County 14658
71 Gasconade County 14655
72 Pemiscot County 14407
73 Osage County 13478
74 Madison County 12852
75 Douglas County 12290
76 Linn County 11910
77 Mississippi County 11750
78 Barton County 11717
79 Montgomery County 11511
80 Wayne County 10820
81 Ripley County 10715
82 Bollinger County 10610
83 Ralls County 10499
84 Howard County 10150
85 DeKalb County 9884
86 Lewis County 9852
87 St. Clair County 9848
88 Grundy County 9766
89 Iron County 9420
90 Ozark County 9090
91 Caldwell County 9000
92 Monroe County 8890
93 Hickory County 8766
94 Oregon County 8699
95 Daviess County 8541
96 Maries County 8506
97 Carroll County 8414
98 Harrison County 8186
99 Dade County 7622
100 Chariton County 7397
101 Shannon County 7275
102 Clark County 6623
103 Gentry County 6298
104 Reynolds County 5927
105 Shelby County 5926
106 Sullivan County 5750
107 Carter County 5359
108 Atchison County 5139
109 Scotland County 4698
110 Putnam County 4539
111 Holt County 4241
112 Schuyler County 4069
113 Knox County 3740
114 Mercer County 3452
115 Worth County 1872