| Localité | Code postal |
|---|---|
| Ama, Saint Charles | 70031 |
| Boutte, Saint Charles | 70039 |
| Des Allemands, Saint Charles | 70030 |
| Destrehan, Saint Charles | 70047 |
| Good Hope, Saint Charles | 70079 |
| Hahnville, Saint Charles | 70057 |
| Killona, Saint Charles | 70057 |
| Luling, Saint Charles | 70070 |
| Montz, Saint Charles | 70068 |
| New Sarpy, Saint Charles | 70078 |
| Norco, Saint Charles | 70079 |
| Ormond, Saint Charles | 70047 |
| Paradis, Saint Charles | 70080 |
| Saint Rose, Saint Charles | 70087 |