| Locality | Post Code |
|---|---|
| Ajax, Natchitoches | 71450 |
| Allen, Natchitoches | 71469 |
| Ashland, Natchitoches | 71002 |
| Bellwood, Natchitoches | 71468 |
| Bethel, Natchitoches | 71450 |
| Boline, Natchitoches | 71450 |
| Campti, Natchitoches | 71411 |
| Cane River, Natchitoches | 71456 |
| Chopin, Natchitoches | 71447 |
| Clarence, Natchitoches | 71414 |
| Cloutierville, Natchitoches | 71416 |
| Cypress, Natchitoches | 71457 |
| Derry, Natchitoches | 71416 |
| Flatwoods, Natchitoches | 71427 |
| Flora, Natchitoches | 71428 |
| Fort Jessup, Natchitoches | 71469 |
| Goldonna, Natchitoches | 71031 |
| Gorum, Natchitoches | 71434 |
| Hagewood, Natchitoches | 71457 |
| Harmony, Natchitoches | 71469 |
| Irma, Natchitoches | 71457 |
| Kisatchie, Natchitoches | 71468 |
| Lena, Natchitoches | 71447 |
| Little Egypt, Natchitoches | 71450 |
| Marthaville, Natchitoches | 71450 |
| Melrose, Natchitoches | 71452 |