| Postal Service | Saint James |
| Division | Watonwan |
| Post code | 56081 |
| Postal Service | Madelia |
| Division | Watonwan |
| Post code | 56062 |
| Postal Service | Lewisville |
| Division | Watonwan |
| Post code | 56060 |
| Postal Service | La Salle |
| Division | Watonwan |
| Post code | 56056 |
| Postal Service | Darfur |
| Division | Watonwan |
| Post code | 56022 |
5 City in Watonwan | List of Zip Codes Location In Minnesota and Your selected County Watonwan