| Place | Post Code |
|---|---|
| Bocheniec, Radomin | 87-404 |
| Dulsk, Radomin | 87-404 |
| Dulsk-Frankowo, Radomin | 87-404 |
| Dulsk-Spiczyny, Radomin | 87-404 |
| Gaj, Radomin | 87-404 |
| Jakubkowo, Radomin | 87-404 |
| Kamionka, Radomin | 87-404 |
| Łubki, Radomin | 87-404 |
| Piórkowo, Radomin | 87-404 |
| Płonko, Radomin | 87-404 |
| Płonne, Radomin | 87-404 |
| Płonne-Plebanka, Radomin | 87-404 |
| Radomin, Radomin | 87-404 |
| Rętwiny, Radomin | 87-404 |
| Rodzone, Radomin | 87-404 |
| Smólniki, Radomin | 87-404 |
| Szafarnia, Radomin | 87-404 |
| Szafarnia-Pólka, Radomin | 87-404 |
| Szczutowo, Radomin | 87-404 |
| Wilczewko, Radomin | 87-404 |
| Wilczewo, Radomin | 87-404 |