| Place | Post Code |
|---|---|
| Poblacion Zone 8, Baybay | 6521 |
| Poblacion Zone 9, Baybay | 6521 |
| Pomponan, Baybay | 6521 |
| Punta, Baybay | 6521 |
| Sabang, Baybay | 6521 |
| San Agustin, Baybay | 6521 |
| San Isidro, Baybay | 6521 |
| San Juan, Baybay | 6521 |
| Santa Cruz, Baybay | 6521 |
| Santo Rosario, Baybay | 6521 |
| Sapa, Baybay | 6521 |
| Villa Mag-Aso, Baybay | 6521 |
| Villa Solidaridad, Baybay | 6521 |
| Zacarito, Baybay | 6521 |