| Locality | Post Code |
|---|---|
| Bell City, Calcasieu | 70630 |
| Calcasieu Marine Tower, Calcasieu | 70629 |
| Dequincy, Calcasieu | 70633 |
| Drew, Calcasieu | 70607 |
| Grand Lake, Calcasieu | 70601 |
| Hayes, Calcasieu | 70646 |
| Iowa, Calcasieu | 70647 |
| Lake Charles, Calcasieu | 70601, 70605, 70606, 70607, 70611, … |
| Moss Bluff, Calcasieu | 70611 |
| Starks, Calcasieu | 70661 |
| Sulphur, Calcasieu | 70663, 70665 |
| Sweet Lake, Calcasieu | 70605 |
| Vinton, Calcasieu | 70668 |
| Westlake, Calcasieu | 70669 |