| Place | Postal Code |
|---|---|
| Abad Santos, Santa Monica (Sapao) | 8422 |
| Alegria, Santa Monica (Sapao) | 8422 |
| Bailan, Santa Monica (Sapao) | 8422 |
| Garcia, Santa Monica (Sapao) | 8422 |
| Libertad, Santa Monica (Sapao) | 8422 |
| Mabini, Santa Monica (Sapao) | 8422 |
| Mabuhay, Santa Monica (Sapao) | 8422 |
| Magsaysay, Santa Monica (Sapao) | 8422 |
| Rizal, Santa Monica (Sapao) | 8422 |
| T. Arlan, Santa Monica (Sapao) | 8422 |
| Tangbo, Santa Monica (Sapao) | 8422 |