| Localité | Code postal |
|---|---|
| Alsville, Hamlin | 57248 |
| Bryant, Hamlin | 57221 |
| Castlewood, Hamlin | 57223 |
| Dempster, Hamlin | 57234 |
| Estelline, Hamlin | 57234 |
| Hayti, Hamlin | 57241 |
| Hazel, Hamlin | 57242 |
| Kones Corner, Hamlin | 57223 |
| Lake Norden, Hamlin | 57248 |
| Thomas, Hamlin | 57241 |