| Place | Post Code |
|---|---|
| Bagsik, Alcantara | 5509 |
| Bonlao, Alcantara | 5509 |
| Calagonsao, Alcantara | 5509 |
| Camili, Alcantara | 5509 |
| Camod-Om, Alcantara | 5509 |
| Gui-Ob, Alcantara | 5509 |
| Lawan, Alcantara | 5509 |
| Madalag, Alcantara | 5509 |
| Poblacion, Alcantara | 5509 |
| San Isidro, Alcantara | 5509 |
| San Roque, Alcantara | 5509 |
| Tugdan, Alcantara | 5509 |