| Timezone | Philippine Time |
| Area | 2,828.8 km² |
| Population | 3.2 million |
| Population Density | 1,141 / km² |
|
| Zip Codes | 3300, 3301, 3304 (67 more) |
| Area Code | 78 |
| Businesses in Cagayan Valley | 12,890 |
| Cities | 70 |
70 Zip Codes in Cagayan Valley
| Zip Code | City | Administrative Region | City Population |
|---|
| 3300 | Ilagan | Cagayan Valley | 72,363 |
| 3301 | Gamu, Isabela | Cagayan Valley | 5,545 |
| 3304 | Luna | Cagayan Valley | — |
| 3305 | Cauayan, Isabela | Cagayan Valley | — |
| 3306 | Alicia, Isabela | Cagayan Valley | 24,732 |
| 3307 | Angadanan, Isabela | Cagayan Valley | 4,487 |
| 3308 | San Guillermo | Cagayan Valley | — |
| 3309 | Echague, Isabela | Cagayan Valley | 8,058 |
| 3311 | Santiago (Philippine city) | Cagayan Valley | 108,414 |
| 3312 | Cordon, Isabela | Cagayan Valley | 4,514 |
| 3313 | Jones, Isabela | Cagayan Valley | 5,227 |
| 3314 | San Agustin, Isabela | Cagayan Valley | — |
| 3315 | Cabatuan, Isabela | Cagayan Valley | — |
| 3319 | Ramon, Isabela | Cagayan Valley | 36,307 |
| 3323 | Mallig | Cagayan Valley | — |
| 3324 | Quezon, Isabela | Cagayan Valley | 9,485 |
| 3325 | Antagan Segunda | Cagayan Valley | 4,066 |
| 3326 | Delfin Albano, Isabela | Cagayan Valley | — |
| 3328 | Cabagan, Isabela | Cagayan Valley | 25,304 |
| 3329 | San Pablo, Isabela | Cagayan Valley | — |
| 3330 | Santa Maria, Isabela | Cagayan Valley | 3,736 |
| 3331 | Benito Soliven, Isabela | Cagayan Valley | 4,926 |
| 3332 | San Mariano, Isabela | Cagayan Valley | 12,441 |
| 3333 | Maconacon, Isabela | Cagayan Valley | — |
| 3334 | Palanan, Isabela | Cagayan Valley | — |
| 3401 | Diffun, Quirino | Cagayan Valley | — |
| 3402 | Saguday | Cagayan Valley | 7,464 |
| 3404 | Maddela, Quirino | Cagayan Valley | 9,751 |
| 3405 | Nagtipunan | Cagayan Valley | 5,682 |
| 3500 | Tuguegarao City | Cagayan Valley | 115,105 |
| 3501 | Enrile, Cagayan | Cagayan Valley | 9,650 |
| 3502 | Peñablanca, Cagayan | Cagayan Valley | 2,983 |
| 3503 | Solana, Cagayan | Cagayan Valley | 71,475 |
| 3504 | Iguig, Cagayan | Cagayan Valley | 3,274 |
| 3505 | Amulung, Cagayan | Cagayan Valley | 2,354 |
| 3509 | Lal-Lo, Cagayan | Cagayan Valley | — |
| 3510 | Camalaniugan, Cagayan | Cagayan Valley | — |
| 3511 | Buguey, Cagayan | Cagayan Valley | 3,111 |
| 3512 | Santa Teresita, Cagayan | Cagayan Valley | 2,576 |
| 3513 | Gonzaga, Cagayan | Cagayan Valley | 7,228 |
| 3514 | Santa Ana, Cagayan | Cagayan Valley | 6,315 |
| 3515 | Aparri | Cagayan Valley | 33,230 |
| 3516 | Ballesteros, Cagayan | Cagayan Valley | 5,591 |
| 3517 | Abulug | Cagayan Valley | 2,412 |
| 3518 | Sanchez-Mira | Cagayan Valley | — |
| 3519 | Claveria, Cagayan | Cagayan Valley | 10,618 |
| 3521 | Santa Praxedes | Cagayan Valley | — |
| 3522 | Pamplona, Cagayan | Cagayan Valley | 2,133 |
| 3523 | Allacapan, Cagayan | Cagayan Valley | 3,645 |
| 3524 | Lasam, Cagayan | Cagayan Valley | 6,352 |
| 3525 | Santo Niño, Cagayan | Cagayan Valley | 4,915 |
| 3527 | Piat, Cagayan | Cagayan Valley | 5,958 |
| 3528 | Tuao | Cagayan Valley | 2,200 |
| 3700 | Bayombong | Cagayan Valley | 48,199 |
| 3701 | Ambaguio | Cagayan Valley | — |
| 3703 | Kasibu | Cagayan Valley | — |
| 3704 | Aritao | Cagayan Valley | 7,971 |
| 3705 | Santa Fe, Nueva Vizcaya | Cagayan Valley | — |
| 3706 | Dupax del Norte | Cagayan Valley | — |
| 3707 | Dupax del Sur | Cagayan Valley | — |
| 3708 | Kayapa | Cagayan Valley | — |
| 3709 | Solano, Nueva Vizcaya | Cagayan Valley | 36,222 |
| 3712 | Diadi | Cagayan Valley | 15,567 |
| 3713 | Buliwao | Cagayan Valley | 2,380 |
| 3900 | Basco, Batanes | Cagayan Valley | 7,297 |
| 3901 | Mahatao, Batanes | Cagayan Valley | — |
| 3902 | Ivana, Batanes | Cagayan Valley | — |
| 3903 | Uyugan, Batanes | Cagayan Valley | — |
| 3904 | Sabtang, Batanes | Cagayan Valley | — |
| 3905 | Itbayat, Batanes | Cagayan Valley | — |
Address Example
Most populated cities in Cagayan Valley
