Founded in 1907, Carter County is one of 77 counties in the state of Oklahoma. Historically, Carter County was formed from Pickens County, Chickasaw Nation. The city of Ardmore is the county seat. With FIPS code of 19, Carter County has a population of 48,291 and area of 824 square miles (2,134 km2).
List of all cities in Carter County, OK alphabetically
| City/Town | Postal Code | Area Code |
| Ardmore, OK | 73401 | 580 |
| 73402 | 580 | |
| 73403 | 580 | |
| Fox, OK | 73435 | 580 |
| Gene Autry, OK | 73436 | 580 |
| Graham, OK | 73437 | 580 |
| Healdton, OK | 73438 | 580 |
| Hennepin, OK | 73444 | 580 |
| Lone Grove, OK | 73443 | 580 |
| Milo, OK | 73401 | 580 |
| Pooleville, OK | 73401 | 580 |
| Ratliff City, OK | 73481 | 580 |
| Rubottom, OK | 73463 | 580 |
| Springer, OK | 73458 | 580 |
| Tatums, OK | 73487 | 580 |
| Tussy, OK | 73488 | 580 |
| Wilson, OK | 73463 | 580 |