| Place | Post Code |
|---|---|
| Baclayon, Bacacay | 4509 |
| Banao, Bacacay | 4509 |
| Barangay 1, Bacacay | 4509 |
| Barangay 10, Bacacay | 4509 |
| Barangay 11, Bacacay | 4509 |
| Barangay 12, Bacacay | 4509 |
| Barangay 13, Bacacay | 4509 |
| Barangay 14, Bacacay | 4509 |
| Barangay 2, Bacacay | 4509 |
| Barangay 3, Bacacay | 4509 |
| Barangay 4, Bacacay | 4509 |
| Barangay 5, Bacacay | 4509 |
| Barangay 6, Bacacay | 4509 |
| Barangay 7, Bacacay | 4509 |
| Barangay 8, Bacacay | 4509 |
| Barangay 9, Bacacay | 4509 |
| Bariw, Bacacay | 4509 |
| Basud, Bacacay | 4509 |
| Bayandong, Bacacay | 4509 |
| Bonga, Bacacay | 4509 |
| Buang, Bacacay | 4509 |
| Busdac, Bacacay | 4509 |
| Cabasan, Bacacay | 4509 |
| Cagbulacao, Bacacay | 4509 |
| Cagraray, Bacacay | 4509 |
| Cajogutan, Bacacay | 4509 |