| County | County Seat |
| Adair | |
| Alfalfa | |
| Atoka | |
| Beaver | |
| Beckham | |
| Blaine | |
| Bryan | |
| Caddo | |
| Canadian | |
| Carter | |
| Cherokee | |
| Choctaw | |
| Cimarron | |
| Cleveland | |
| Coal | |
| Comanche | |
| Cotton | |
| Craig | |
| Creek | |
| Custer | |
| Delaware | |
| Dewey | |
| Ellis | |
| Garfield | |
| Garvin | |
| Grady | |
| | County | County Seat |
| Grant | |
| Greer | |
| Harmon | |
| Harper | |
| Haskell | |
| Hughes | |
| Jackson | |
| Jefferson | |
| Johnston | |
| Kay | |
| Kingfisher | |
| Kiowa | |
| Latimer | |
| Le Flore | |
| Lincoln | |
| Logan | |
| Love | |
| Major | |
| Marshall | |
| Mayes | |
| McClain | |
| McCurtain | |
| McIntosh | |
| Murray | |
| Muskogee | |
| Noble | |
| | County | County Seat |
| Nowata | |
| Okfuskee | |
| Oklahoma | |
| Okmulgee | |
| Osage | |
| Ottawa | |
| Pawnee | |
| Payne | |
| Pittsburgh | |
| Pontotoc | |
| Pottawatomie | |
| Pushmataha | |
| Roger Mills | |
| Rogers | |
| Seminole | |
| Sequoyah | |
| Stephens | |
| Texas | |
| Tillman | |
| Tulsa | |
| Wagoner | |
| Washington | |
| Wa****a | |
| Woods | |
| Woodward | |
|