| Locality | Post Code |
|---|---|
| Brittany, Ascension | 70718 |
| Burnside, Ascension | 70738 |
| Darrow, Ascension | 70725 |
| Donaldsonville, Ascension | 70346 |
| Duplessis, Ascension | 70728 |
| Galvez, Ascension | 70769 |
| Geismar, Ascension | 70734 |
| Gonzales, Ascension | 70737 |
| Lake, Ascension | 70769 |
| McCall, Ascension | 70346 |
| Modeste, Ascension | 70346 |
| Prairieville, Ascension | 70769 |
| Saint Amant, Ascension | 70774 |
| Sorrento, Ascension | 70778 |