| Post Office | Sparta |
| Division | Monroe |
| Pincode | 54656 |
| Post Office | Tomah |
| Division | Monroe |
| Pincode | 54660 |
| Post Office | Cashton |
| Division | Monroe |
| Pincode | 54619 |
| Post Office | Warrens |
| Division | Monroe |
| Pincode | 54666 |
| Post Office | Wilton |
| Division | Monroe |
| Pincode | 54670 |
| Post Office | Norwalk |
| Division | Monroe |
| Pincode | 54648 |