District 1 - Andrew, Atchison, Buchanan, Caldwell, Carroll, Clinton, Daviess, DeKalb, Gentry, Grundy, Harrison, Holt, Livingston, Mercer, Nodaway and Worth
District 2 - Adair, Audrain, Chariton, Clark, Knox, Lewis, Lincoln, Linn, Macon, Marion, Monroe, Montgomery, Pike, Putnam, Ralls, Randolph, Schuyler, Scotland, Shelby and Sullivan
District 3 - Jackson
District 4 - Cass, Clay, Johnson, Lafayette, Platte and Ray
District 5 - Boone, Callaway, Cooper, Howard and Saline
District 6 - Cole, Moniteau and Osage
District 7 - Franklin, Gasconade, St. Charles and Warren
District 8 - St. Louis County
District 9 - City of St. Louis
District 10 - Barry, Barton, Bates, Cedar, Dade, Henry, Jasper, Lawrence, McDonald, Newton, St. Clair and Vernon
District 11 - Christian, Douglas, Greene, Howell, Ozark, Stone, Taney, Webster and Wright
District 12 - Benton, Camden, Dallas, Hickory, Laclede, Maries, Miller, Morgan, Pettis, Phelps, Polk, Pulaski and Texas
District 13 - Bollinger, Cape Girardeau, Crawford, Jefferson, Perry, St. Francois, St. Genevieve and Washington
District 14 - Butler, Carter, Dent, Dunklin, Iron, Madison, Mississippi, New Madrid, Oregon, Pemiscot, Reynolds, Ripley, Scott, Shannon, Stoddard and Wayne