| Place | Post Code |
|---|---|
| North Manuangan, Pigkawayan | 9412 |
| Patot, Pigkawayan | 9412 |
| Payong-Payong, Pigkawayan | 9412 |
| Poblacion I, Pigkawayan | 9412 |
| Poblacion II, Pigkawayan | 9412 |
| Poblacion III, Pigkawayan | 9412 |
| Presbitero, Pigkawayan | 9412 |
| Renibon, Pigkawayan | 9412 |
| Simsiman, Pigkawayan | 9412 |
| South Manuangan, Pigkawayan | 9412 |
| Tigbawan, Pigkawayan | 9412 |
| Tubon, Pigkawayan | 9412 |
| Upper Baguer, Pigkawayan | 9412 |
| Upper Pangangkalan, Pigkawayan | 9412 |