| Locality | Post Code |
|---|---|
| Abita Springs, Saint Tammany | 70420 |
| Bush, Saint Tammany | 70431 |
| Claiborne, Saint Tammany | 70433 |
| Covington, Saint Tammany | 70433, 70435 |
| Folsom, Saint Tammany | 70437 |
| Hootenville, Saint Tammany | 70448 |
| Lacombe, Saint Tammany | 70445 |
| Lewisburg, Saint Tammany | 70448 |
| Madisonville, Saint Tammany | 70447 |
| Mandeville, Saint Tammany | 70448, 70471 |
| North Shore, Saint Tammany | 70458 |
| Pearl River, Saint Tammany | 70452 |
| Riverwood, Saint Tammany | 70433 |
| Saint Benedict, Saint Tammany | 70457 |
| Saint Gertrude, Saint Tammany | 70433 |
| Slidell, Saint Tammany | 70458, 70460, 70461 |
| Sun, Saint Tammany | 70463 |
| Talisheek, Saint Tammany | 70464 |
| Uneedus, Saint Tammany | 70437 |