| Location | Zip Code |
| Baao | 4432 |
| Balatan | 4436 |
| Bato | 4435 |
| Bombon | 4404 |
| Buhi | 4433 |
| Bula | 4430 |
| Cabusao | 4406 |
| Calabanga | 4405 |
| Camaligan | 4401 |
| Canaman | 4402 |
| Caramoan | 4429 |
| Del Gallego | 4411 |
| Gainza | 4412 |
| Garchitorena | 4428 |
| Goa | 4422 |
| Iriga City | 4431 |
| Lagunoy | 4425 |
| Libmanan | 4407 |
| Lupi | 4409 |
| Magarao | 4403 |
| Milaor | 4413 |
| Minalabac | 4414 |
| Nabua | 4434 |
| Naga City | 4400 |
| Ocampo | 4419 |
| Pamplona | 4416 |
| Pasacao | 4417 |
| Pili | 4418 |
| Presentacion | 4424 |
| Ragay | 4410 |
| Sagnay | 4421 |
| San Fernando | 4415 |
| San Jose | 4423 |
| Sipocot | 4408 |
| Siruma | 4427 |
| Tigaon | 4420 |
| Tinambac | 4426 |