| Post Office | Hudson |
| Division | Saint Croix |
| Pincode | 54016 |
| Post Office | New Richmond |
| Division | Saint Croix |
| Pincode | 54017 |
| Post Office | Somerset |
| Division | Saint Croix |
| Pincode | 54025 |
| Post Office | Baldwin |
| Division | Saint Croix |
| Pincode | 54002 |
| Post Office | Roberts |
| Division | Saint Croix |
| Pincode | 54023 |
| Post Office | Hammond |
| Division | Saint Croix |
| Pincode | 54015 |