| Place | Post Code |
|---|---|
| Abachanan, Sierra Bullones | 6320 |
| Anibongan, Sierra Bullones | 6320 |
| Bugsoc, Sierra Bullones | 6320 |
| Cahayag, Sierra Bullones | 6320 |
| Canlangit, Sierra Bullones | 6320 |
| Canta-Ub, Sierra Bullones | 6320 |
| Casilay, Sierra Bullones | 6320 |
| Danicop, Sierra Bullones | 6320 |
| Dusita, Sierra Bullones | 6320 |
| La Union, Sierra Bullones | 6320 |
| Lataban, Sierra Bullones | 6320 |
| Magsaysay, Sierra Bullones | 6320 |
| Man-Od, Sierra Bullones | 6320 |
| Matin-Ao, Sierra Bullones | 6320 |
| Poblacion, Sierra Bullones | 6320 |
| Salvador, Sierra Bullones | 6320 |
| San Agustin, Sierra Bullones | 6320 |
| San Isidro, Sierra Bullones | 6320 |
| San Jose, Sierra Bullones | 6320 |
| San Juan, Sierra Bullones | 6320 |
| Santa Cruz, Sierra Bullones | 6320 |
| Villa Garcia, Sierra Bullones | 6320 |