| City/Town | Area Code | Zip Code | County | Code |
| Jay | 918 | 74346 | Delaware | 40041 |
| Jefferson | 405 | 73759 | Grant | 40053 |
| Jenks | 918 | 74037 | Tulsa | 40143 |
| Jennings | 918 | 74038 | Pawnee | 40117 |
| Jet | 405 | 73749 | Alfalfa | 40003 |
| Johnson | 405 | 74801 | Pottawatomie | 40125 |
| Jones | 405 | 73049 | Oklahoma | 40109 |
| Jumbo | 405 | 74523 | Pushmataha | 40127 |