| Locality | Post Code |
|---|---|
| Camden, Preble | 45311 |
| Eaton, Preble | 45320 |
| Eldorado, Preble | 45321 |
| Gratis, Preble | 45330 |
| Lewisburg, Preble | 45338 |
| Morning Sun, Preble | 45311 |
| New Paris, Preble | 45347 |
| Verona, Preble | 45378 |
| West Alexandria, Preble | 45381 |
| West Elkton, Preble | 45070 |
| West Manchester, Preble | 45382 |