Cagayan ZIP Codes range from 3500 to 3524. This province is known for its stunning natural landscapes, including beaches, caves, and the Cagayan River.
Cagayan ZIP Codes
| Location | ZIP Code | |
| Abulog | 3517 | |
| Alcala | 3506 | |
| Allacapan | 3523 | |
| Amulung | 3505 | |
| Aparri | 3515 | |
| Baggao | 3506 | |
| Ballesteros | 3516 | |
| Buguey | 3511 | |
| Calayan | 3520 | |
| Camalaniugan | 3510 | |
| Claveria | 3519 | |
| Enrile | 3501 | |
| Gattaran | 3508 | |
| Gonzaga | 3511 | |
| Iguig | 3504 | |
| Lal-lo | 3509 | |
| Lasam | 3524 | |
| Pamplona | 3522 | |
| Penablanca | 3502 | |
| Piat | 3527 | |
| Rizal | 3526 | |
| Sanchez Mira | 3518 | |
| Santa Ana | 3514 | |
| Santa Praxedes | 3521 | |
| Santa Teresita | 3512 | |
| Santo Nino | 3525 | |
| Solana | 3503 | |
| Tuao | 3528 | |
| Tuguegarao | 3500 | |