Basco Postal Codes: 3900 | Batanes, Cagayan Valley
The Postal Codes (ZIP Codes) for Basco is 3900 in Batanes, Cagayan Valley, Batanes, Philippines. The table below lists Postal Codes and postcodes for places within Basco.
Postal Codes for Places in Basco
Showing 6 places in Basco. Last verified with official records on April 20, 2026.
| Chanarian | |
| Ihubok I | |
| Ihubok II | |
| Kayhuvokan | |
| San Antonio | |
| San Joaquin |
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Sample Address Format for Basco
[Sender Street Address]
[City, ZIP]
[Country]
Street Address / PO Box
Basco, Batanes, Cagayan Valley, 3900
PHILIPPINES
Basco on the Map
The map above highlights the geographic boundaries of the Basco municipalities in Philippines.
Basco Quick Facts
| Country | Philippines (PH) |
|---|---|
| Administrative Path | Philippines → Cagayan Valley → Batanes |
| Postal Code | 3900 |
| Region | Cagayan Valley |
| Provinces | Batanes |
| ISO Codes | PH / PHL / 608 |
| Top-level domain (ccTLD) | .ph |
| Coordinates | 20.449044, 121.968346 |
| Places | 6 |
What to Know About Basco
Key Facts
Basco is the capital municipality of Batanes province, located at the northernmost tip of the Philippines in the Cagayan Valley region. Situated on Batan Island, the largest of the Batanes Islands, Basco serves as the provincial capital and main gateway to this remote archipelago. The municipality covers approximately 49.46 square kilometers and has a population of around 9,000 residents according to recent census data. Basco is administratively divided into six barangays: Kayvaluganan, Kaychanarianan, San Antonio, San Joaquín, Ivana, and Mahatao. The town is named after Spanish explorer and governor-general José Basco y Vargas, who established the province in 1783. Basco features a unique landscape characterized by rolling hills, dramatic coastlines, and traditional Ivatan stone houses built to withstand the region's frequent typhoons. The municipality's economy is primarily based on agriculture, fishing, and increasingly, tourism, with visitors drawn to its pristine natural beauty and distinct cultural heritage. To access detailed postal code information for Basco's barangays and surrounding areas, our comprehensive database provides accurate location-specific data for all administrative subdivisions.