| Localité | Code postal |
|---|---|
| Mora, Natchitoches | 71455 |
| Natchez, Natchitoches | 71456 |
| Natchitoches, Natchitoches | 71457 |
| Northwestern, Natchitoches | 71457 |
| Powhatan, Natchitoches | 71066 |
| Provencal, Natchitoches | 71468 |
| Robeline, Natchitoches | 71469 |
| Saline, Natchitoches | 71070 |
| Shamrock, Natchitoches | 71469 |
| Spanish Lake, Natchitoches | 71469 |
| Vowells Mill, Natchitoches | 71469 |