Missouri — All 115 Counties

Missouri has 115 counties with 1,079 communities and a combined population of 4,394,421.

CountyTownsPopulation
St. Louis County97844,011
Cass County22697,552
St. Charles County18316,943
St. Louis city1293,109
Christian County11243,961
Clay County25229,991
Jackson County15148,867
Boone County11136,115
Jefferson County26108,557
Jasper County22103,733
Buchanan County975,853
Callaway County862,920
Cape Girardeau County1562,341
Franklin County1652,514
St. Francois County1447,471
Johnson County929,633
Pulaski County528,241
New Madrid County1526,558
Platte County1726,010
Phelps County525,177
Pettis County624,359
Marion County423,857
Greene County723,071
Lincoln County1322,783
Newton County1922,434
Barry County1521,357
Lafayette County1621,256
Audrain County921,220
Dunklin County1320,959
Stone County1120,117
Adair County718,720
Warren County718,365
Butler County718,183
Camden County1317,847
Saline County1017,816
Howell County617,495
Randolph County716,454
Lawrence County1016,415
Laclede County416,067
Stoddard County1115,323
Crawford County814,325
Polk County814,174
Henry County1113,983
Nodaway County1713,780
Caldwell County813,235
Texas County612,963
Taney County812,287
Webster County511,159
Pemiscot County1310,794
Perry County810,279
Livingston County810,003
Cooper County89,921
Bates County119,889
Ray County129,871
Mississippi County99,794
Andrew County89,361
Vernon County129,223
Pike County129,101
Macon County108,596
McDonald County98,079
Moniteau County77,958
Ste. Genevieve County77,937
Scott County137,310
Chariton County116,819
Montgomery County126,691
Gasconade County66,639
Miller County86,562
Grundy County86,434
Clinton County76,417
Barton County96,345
Cole County85,918
Cedar County45,844
Benton County65,797
Linn County85,776
Lewis County75,606
Madison County65,509
Carroll County75,129
Harrison County75,034
Dent County24,996
Iron County64,552
Howard County44,310
Dallas County44,101
Gentry County64,031
Morgan County53,909
Shelby County63,879
Daviess County103,875
Wayne County43,759
Washington County43,694
Atchison County63,596
Clark County83,271
Oregon County43,180
Sullivan County93,153
St. Clair County72,997
Douglas County12,978
DeKalb County62,852
Wright County42,847
Dade County62,744
Osage County52,731
Holt County92,724
Ripley County32,633
Ralls County52,608
Maries County32,343
Hickory County52,309
Carter County52,199
Shannon County52,196
Bollinger County42,067
Scotland County52,039
Monroe County61,948
Knox County71,937
Mercer County41,869
Putnam County51,847
Schuyler County41,819
Ozark County61,575
Reynolds County21,339
Worth County61,317