| City/Town | Area Code | Zip Code | County | Code |
| St. Louis | 405 | 74866 | Pottawatomie | 40125 |
| Salina | 918 | 74365 | Mayes | 40097 |
| Sallisaw | 918 | 74955 | Sequoyah | 40135 |
| Sand Springs | 918 | 74063 | Tulsa | 40143 |
| Sapulpa | 918 | 74066 | Creek | 40037 |
| 74067 | ||||
| Sardis | 918 | 74536 | Pushmataha | 40127 |
| Sasakwa | 405 | 74867 | Seminole | 40133 |
| Savanna | 918 | 74565 | Pittsburg | 40121 |
| Sawyer | 405 | 74756 | Choctaw | 40023 |
| Sayre | 405 | 73662 | Beckham | 40009 |
| Schulter | 918 | 74460 | Okmulgee | 40111 |
| Scipio | 918 | 74501 | Pittsburg | 40121 |
| Seiling | 405 | 73663 | Dewey | 40043 |
| Selman | 405 | 73834 | Harper | 40059 |
| Seminole | 405 | 74818 | Seminole | 40133 |
| 74868 | ||||
| Sentinel | 405 | 73664 | Washita | 40149 |
| Seward | 405 | 73044 | Logan | 40083 |
| Shady Point | 918 | 74956 | LeFlore | 40079 |
| Shamrock | 918 | 74068 | Creek | 40037 |
| Sharon | 405 | 73857 | Woodward | 40153 |
| Shattuck | 405 | 73858 | Ellis | 40045 |
| Shawnee | 405 | 74801 | Pottawatomie | 40125 |
| 74802 | ||||
| 74838 | ||||
| Sherwood | 405 | 74728 | McCurtain | 40089 |
| Shidler | 918 | 74652 | Osage | 40113 |
| Skedee | 918 | 74058 | Pawnee | 40117 |
| Skiatook | 918 | 74070 | Osage | 40113 |
| Tulsa | 40143 | |||
| Slick | 918 | 74071 | Creek | 40037 |
| Smithville | 405 | 74957 | McCurtain | 40089 |
| Snow | 405 | 74567 | Pushmataha | 40127 |
| Snyder | 405 | 73566 | Kiowa | 40075 |
| Sobol | 405 | 74735 | Pushmataha | 40127 |
| Sooner | 405 | 73070 | Cleveland | 40027 |
| Soper | 405 | 74759 | Choctaw | 40023 |
| Southard | 405 | 73770 | Blaine | 40011 |
| S. Coffeyville | 918 | 74072 | Nowata | 40105 |
| Sparks | 918 | 74869 | Lincoln | 40081 |
| Spaulding | 405 | 74848 | Hughes | 40063 |
| Spavinaw | 918 | 74366 | Mayes | 40097 |
| Spencer | 405 | 73084 | Oklahoma | 40109 |
| Spencerville | 405 | 74760 | Choctaw | 40023 |
| Sperry | 918 | 74073 | Tulsa | 40143 |
| Spiro | 918 | 74959 | LeFlore | 40079 |
| Springer | 405 | 73458 | Carter | 40019 |
| Stanley | 918 | 74536 | Pushmataha | 40127 |
| Sterling | 405 | 73567 | Comanche | 40031 |
| Stidham | 918 | 74461 | McIntosh | 40091 |
| Stigler | 918 | 74462 | Haskell | 40061 |
| Stillwater | 405 | 74074 | Payne | 40119 |
| thru | ||||
| 74076 | ||||
| Stilwell | 918 | 74960 | Adair | 40001 |
| Stonewall | 405 | 74871 | Pontotoc | 40123 |
| Strang | 918 | 74367 | Mayes | 40097 |
| Stratlord | 405 | 74872 | Garvin | 40049 |
| Stringtown | 405 | 74569 | Atoka | 40005 |
| Strong City | 405 | 73628 | Roger Mills | 40129 |
| Stroud | 918 | 74079 | Lincoln | 40081 |
| Stuart | 918 | 74570 | Hughes | 40063 |
| Sulphur | 405 | 73086 | Murray | 40099 |
| Summerfield | 918 | 74966 | LeFlore | 40079 |
| Sweetwater | 405 | 73666 | Roger Mills | 40129 |
| Swink | 405 | 74761 | Choctaw | 40023 |