Biliran ZIP Codes range from 6540 to 6549. This province is known for its beautiful waterfalls, pristine beaches, and rich natural resources.
Biliran Sub-Province ZIP Codes
| Location | ZIP Code | |
| Almeria | 6544 | |
| Biliran | 6549 | |
| Cabuccayan | 6550 | |
| Caibiran | 6548 | |
| Culaba | 6547 | |
| Kawayan | 6545 | |
| Maripipi | 6546 | |
| Naval | 6543 | |