Missouri
115 counties · Pop: 6,154,913
State Offices
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Counties in Missouri
Adair
County Seat: Kirksville
Pop: 25,343
Andrew
County Seat: Savannah
Pop: 17,712
Atchison
County Seat: Rock Port
Pop: 5,143
Audrain
County Seat: Mexico
Pop: 25,388
Barry
County Seat: Cassville
Pop: 35,789
Barton
County Seat: Lamar
Pop: 11,732
Bates
County Seat: Butler
Pop: 16,172
Benton
County Seat: Warsaw
Pop: 19,443
Bollinger
County Seat: Marble Hill
Pop: 12,133
Boone
County Seat: Columbia
Pop: 183,610
Buchanan
County Seat: St. Joseph
Pop: 87,364
Butler
County Seat: Poplar Bluff
Pop: 42,733
Caldwell
County Seat: Kingston
Pop: 9,020
Callaway
County Seat: Fulton
Pop: 44,840
Camden
County Seat: Camdenton
Pop: 46,805
Cape Girardeau
County Seat: Jackson
Pop: 79,978
Carroll
County Seat: Carrollton
Pop: 8,679
Carter
County Seat: Van Buren
Pop: 5,765
Cass
County Seat: Harrisonville
Pop: 106,241
Cedar
County Seat: Stockton
Pop: 14,349
Chariton
County Seat: Keytesville
Pop: 7,426
Christian
County Seat: Ozark
Pop: 88,595
Clark
County Seat: Kahoka
Pop: 6,797
Clay
County Seat: Liberty
Pop: 249,948
Clinton
County Seat: Plattsburg
Pop: 20,743
Cole
County Seat: Jefferson City
Pop: 76,745
Cooper
County Seat: Boonville
Pop: 17,709
Crawford
County Seat: Steelville
Pop: 24,316
Dade
County Seat: Greenfield
Pop: 7,561
Dallas
County Seat: Buffalo
Pop: 16,878
Daviess
County Seat: Gallatin
Pop: 8,278
DeKalb
County Seat: Maysville
Pop: 12,547
Dent
County Seat: Salem
Pop: 15,608
Douglas
County Seat: Ava
Pop: 13,327
Dunklin
County Seat: Kennett
Pop: 29,131
Franklin
County Seat: Union
Pop: 104,437
Gasconade
County Seat: Hermann
Pop: 14,706
Gentry
County Seat: Albany
Pop: 6,565
Greene
County Seat: Springfield
Pop: 294,977
Grundy
County Seat: Trenton
Pop: 9,850
Harrison
County Seat: Bethany
Pop: 8,352
Henry
County Seat: Clinton
Pop: 21,824
Hickory
County Seat: Hermitage
Pop: 9,544
Holt
County Seat: Oregon
Pop: 4,253
Howard
County Seat: Fayette
Pop: 10,001
Howell
County Seat: West Plains
Pop: 40,117
Iron
County Seat: Ironton
Pop: 10,150
Jackson
County Seat: Kansas City
Pop: 717,204
Jasper
County Seat: Carthage
Pop: 121,328
Jefferson
County Seat: Hillsboro
Pop: 226,994
Johnson
County Seat: Warrensburg
Pop: 54,062
Knox
County Seat: Edina
Pop: 3,904
Laclede
County Seat: Lebanon
Pop: 35,723
Lafayette
County Seat: Lexington
Pop: 32,812
Lawrence
County Seat: Mount Vernon
Pop: 38,355
Lewis
County Seat: Monticello
Pop: 9,776
Lincoln
County Seat: Troy
Pop: 59,013
Linn
County Seat: Linneus
Pop: 11,920
Livingston
County Seat: Chillicothe
Pop: 14,969
Macon
County Seat: Macon
Pop: 15,168
Madison
County Seat: Fredericktown
Pop: 12,325
Maries
County Seat: Vienna
Pop: 8,918
Marion
County Seat: Palmyra
Pop: 28,530
McDonald
County Seat: Pineville
Pop: 22,837
Mercer
County Seat: Princeton
Pop: 3,617
Miller
County Seat: Tuscumbia
Pop: 25,619
Mississippi
County Seat: Charleston
Pop: 13,180
Moniteau
County Seat: California
Pop: 16,132
Monroe
County Seat: Paris
Pop: 8,644
Montgomery
County Seat: Montgomery City
Pop: 11,551
Morgan
County Seat: Versailles
Pop: 20,627
New Madrid
County Seat: New Madrid
Pop: 17,416
Newton
County Seat: Neosho
Pop: 58,236
Nodaway
County Seat: Maryville
Pop: 22,092
Oregon
County Seat: Alton
Pop: 10,529
Osage
County Seat: Linn
Pop: 13,615
Ozark
County Seat: Gainesville
Pop: 9,174
Pemiscot
County Seat: Caruthersville
Pop: 15,805
Perry
County Seat: Perryville
Pop: 19,136
Pettis
County Seat: Sedalia
Pop: 42,371
Phelps
County Seat: Rolla
Pop: 44,573
Pike
County Seat: Bowling Green
Pop: 18,302
Platte
County Seat: Platte City
Pop: 104,418
Polk
County Seat: Bolivar
Pop: 32,149
Pulaski
County Seat: Waynesville
Pop: 52,607
Putnam
County Seat: Unionville
Pop: 4,696
Ralls
County Seat: New London
Pop: 10,309
Randolph
County Seat: Huntsville
Pop: 24,748
Ray
County Seat: Richmond
Pop: 23,018
Reynolds
County Seat: Centerville
Pop: 6,270
Ripley
County Seat: Doniphan
Pop: 13,693
Saline
County Seat: Marshall
Pop: 22,761
Schuyler
County Seat: Lancaster
Pop: 4,660
Scotland
County Seat: Memphis
Pop: 4,902
Scott
County Seat: Benton
Pop: 38,280
Shannon
County Seat: Eminence
Pop: 8,166
Shelby
County Seat: Shelbyville
Pop: 5,930
St. Charles
County Seat: St. Charles
Pop: 405,262
St. Clair
County Seat: Osceola
Pop: 9,305
St. Francois
County Seat: Farmington
Pop: 67,215
St. Louis
County Seat: Clayton
Pop: 1,004,125
St. Louis City
County Seat: St. Louis
Pop: 301,578
Ste. Genevieve
County Seat: Ste. Genevieve
Pop: 17,894
Stoddard
County Seat: Bloomfield
Pop: 29,025
Stone
County Seat: Galena
Pop: 32,202
Sullivan
County Seat: Milan
Pop: 6,089
Taney
County Seat: Forsyth
Pop: 57,026
Texas
County Seat: Houston
Pop: 25,372
Vernon
County Seat: Nevada
Pop: 20,563
Warren
County Seat: Warrenton
Pop: 35,649
Washington
County Seat: Potosi
Pop: 24,730
Wayne
County Seat: Greenville
Pop: 13,099
Webster
County Seat: Marshfield
Pop: 39,590
Worth
County Seat: Grant City
Pop: 2,013
Wright
County Seat: Hartville
Pop: 18,289