| Locality | Post Code |
|---|---|
| Elton, Jefferson Davis | 70532 |
| Fenton, Jefferson Davis | 70640 |
| Iowa, Jefferson Davis | 70647 |
| Jennings, Jefferson Davis | 70546 |
| Kinder, Jefferson Davis | 70648 |
| Lacassine, Jefferson Davis | 70650 |
| Lake Arthur, Jefferson Davis | 70549 |
| Roanoke, Jefferson Davis | 70581 |
| Welsh, Jefferson Davis | 70591 |