| Place | Post Code |
|---|---|
| Alag, Baco | 5201 |
| Bangkatan, Baco | 5201 |
| Baras, Baco | 5201 |
| Bayanan, Baco | 5201 |
| Burbuli, Baco | 5201 |
| Catwiran I, Baco | 5201 |
| Catwiran II, Baco | 5201 |
| Dulangan I, Baco | 5201 |
| Dulangan II, Baco | 5201 |
| Lantuyang, Baco | 5201 |
| Lumang Bayan, Baco | 5201 |
| Malapad, Baco | 5201 |
| Mangangan I, Baco | 5201 |
| Mangangan II, Baco | 5201 |
| Mayabig, Baco | 5201 |
| Pambisan, Baco | 5201 |
| Poblacion, Baco | 5201 |
| Pulang-Tubig, Baco | 5201 |
| Putican-Cabulo, Baco | 5201 |
| San Andres, Baco | 5201 |
| San Ignacio, Baco | 5201 |
| Santa Cruz, Baco | 5201 |
| Santa Rosa I, Baco | 5201 |
| Santa Rosa II, Baco | 5201 |
| Tabon-Tabon, Baco | 5201 |
| Tagumpay, Baco | 5201 |