Calayan Postal Codes: 3520 | Cagayan, Cagayan Valley
The Postal Codes (ZIP Codes) for Calayan is 3520 in Cagayan, Cagayan Valley, Cagayan, Philippines. The table below lists Postal Codes and postcodes for places within Calayan.
Postal Codes for Places in Calayan
Showing 12 places in Calayan. Last verified with official records on April 20, 2026.
| Babuyan Claro | |
| Balatubat | |
| Cabudadan | |
| Centro II | |
| Dadao | |
| Dalupiri | |
| Dibay | |
| Dilam | |
| Magsidel | |
| Minabel | |
| Naguilian | |
| Poblacion |
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Sample Address Format for Calayan
[Sender Street Address]
[City, ZIP]
[Country]
Street Address / PO Box
Calayan, Cagayan, Cagayan Valley, 3520
PHILIPPINES
Calayan on the Map
The map above highlights the geographic boundaries of the Calayan municipalities in Philippines.
Calayan Quick Facts
| Country | Philippines (PH) |
|---|---|
| Administrative Path | Philippines → Cagayan Valley → Cagayan |
| Postal Code | 3520 |
| Region | Cagayan Valley |
| Provinces | Cagayan |
| ISO Codes | PH / PHL / 608 |
| Top-level domain (ccTLD) | .ph |
| Coordinates | 19.26126, 121.475629 |
| Places | 12 |
What to Know About Calayan
Key Facts
Calayan is a municipality located in the province of Cagayan within the Cagayan Valley region of the Philippines. Situated in the northern part of the country, Calayan is the largest of the Babuyan Islands group in the Luzon Strait, positioned approximately 24 miles north of the mainland Cagayan coast. This island municipality covers a total land area of approximately 164.5 square kilometers and has a population of around 17,000 people according to recent census data. Calayan is administratively divided into 12 barangays, with the poblacion (town center) serving as the municipal seat. The municipality features rugged terrain with coastal cliffs, rolling hills, and limited flatlands, making it both geographically distinctive and challenging to access. As an island municipality, Calayan maintains its unique cultural identity while being an integral part of the Cagayan provincial governance structure. For those seeking detailed postal and administrative information about Calayan's barangays and surrounding areas, comprehensive postal code data is available to facilitate communication and service delivery throughout the municipality.