Cagayan Valley Postal Codes: 3300 to 3905

Key Facts

Cagayan Valley, officially designated as Region II, is an administrative region located in the northeastern part of Luzon island in the Philippines. This expansive region occupies the fertile valley formed by the Cagayan River, the longest river in the Philippines, which flows through its central plains from the Caraballo Mountains in the south to the Babuyan Channel in the north. With a total land area of approximately 28,228 square kilometers, Cagayan Valley represents about 9.4% of the Philippines' total land area and is the second largest region in the country. The region is administratively divided into five provinces: Batanes, Cagayan, Isabela, Nueva Vizcaya, and Quirino, each with their own distinct characteristics and municipal subdivisions. According to the 2020 census, the region has a population of over 3.6 million people, with Tuguegarao City serving as the regional center and primary urban hub. Known as the 'Rice Granary of the North,' the region's economy is predominantly agricultural, producing significant quantities of rice, corn, tobacco, and other crops in its fertile plains. For those seeking detailed postal code information and administrative data, this region provides access to comprehensive location services across all five constituent provinces and their numerous municipalities.

Neighboring Regions

• Cordillera Administrative Region
• Ilocos Region
• Central Luzon