| Place | Postal Code |
|---|---|
| Agpangi, Naval | 6543 |
| Anislagan, Naval | 6543 |
| Atipolo, Naval | 6543 |
| Borac, Naval | 6543 |
| Cabungaan, Naval | 6543 |
| Calumpang, Naval | 6543 |
| Capiñahan, Naval | 6543 |
| Caraycaray, Naval | 6543 |
| Catmon, Naval | 6543 |
| Haguikhikan, Naval | 6543 |
| Imelda, Naval | 6543 |
| Larrazabal, Naval | 6543 |
| Libertad, Naval | 6543 |
| Libtong, Naval | 6543 |
| Lico, Naval | 6543 |
| Lucsoon, Naval | 6543 |
| Mabini, Naval | 6543 |
| Padre Inocentes Garcia, Naval | 6543 |
| Padre Sergio Eamiguel, Naval | 6543 |
| Sabang, Naval | 6543 |
| San Pablo, Naval | 6543 |
| Santissimo Rosario, Naval | 6543 |
| Santissimo Rosario Poblacion, Naval | 6543 |
| Santo Niño, Naval | 6543 |
| Talustusan, Naval | 6543 |
| Villa Caneja, Naval | 6543 |