| Place | Post Code |
|---|---|
| Amomonting, Castilla | 4713 |
| Bagalayag, Castilla | 4713 |
| Bagong Sirang, Castilla | 4713 |
| Bonga, Castilla | 4713 |
| Buenavista, Castilla | 4713 |
| Burabod, Castilla | 4713 |
| Caburacan, Castilla | 4713 |
| Canjela, Castilla | 4713 |
| Cogon, Castilla | 4713 |
| Cumadcad, Castilla | 4713 |
| Dangcalan, Castilla | 4713 |
| Dinapa, Castilla | 4713 |
| La Union, Castilla | 4713 |
| Libtong, Castilla | 4713 |
| Loreto, Castilla | 4713 |
| Macalaya, Castilla | 4713 |
| Maracabac, Castilla | 4713 |
| Mayon, Castilla | 4713 |
| Maypangi, Castilla | 4713 |
| Milagrosa, Castilla | 4713 |
| Miluya, Castilla | 4713 |
| Monte Carmelo, Castilla | 4713 |
| Oras, Castilla | 4713 |
| Pandan, Castilla | 4713 |
| Poblacion, Castilla | 4713 |
| Quirapi, Castilla | 4713 |