| Ort | Postleitzahl |
|---|---|
| Alicaocao, Cauayan | 3305 |
| Alinam, Cauayan | 3305 |
| Amobocan, Cauayan | 3305 |
| Andarayan, Cauayan | 3305 |
| Baculod, Cauayan | 3305 |
| Baringin Norte, Cauayan | 3305 |
| Baringin Sur, Cauayan | 3305 |
| Buena Suerte, Cauayan | 3305 |
| Bugallon, Cauayan | 3305 |
| Buyon, Cauayan | 3305 |
| Cabaruan, Cauayan | 3305 |
| Cabugao, Cauayan | 3305 |
| Carabatan Bacareno, Cauayan | 3305 |
| Carabatan Chica, Cauayan | 3305 |
| Carabatan Grande, Cauayan | 3305 |
| Carabatan Punta, Cauayan | 3305 |
| Casalatan, Cauayan | 3305 |
| Cassap Fuera, Cauayan | 3305 |
| Catalina, Cauayan | 3305 |
| Culalabat, Cauayan | 3305 |
| Dabburab, Cauayan | 3305 |
| De Vera, Cauayan | 3305 |
| Dianao, Cauayan | 3305 |
| Disimuray, Cauayan | 3305 |
| District I, Cauayan | 3305 |
| District II, Cauayan | 3305 |