Region II – Cagayan Valley Administrative Guide (Provinces, Cities, Municipalities & LGUs)

Region II, or the Cagayan Valley Region, consists of Batanes, Cagayan, Isabela, Nueva Vizcaya, and Quirino. This administrative guide covers its provinces, cities, municipalities, geography, economy, and LGU structure.

Region II – Cagayan Valley Administrative Guide

Region II, officially known as the Cagayan Valley Region, occupies the northeastern portion of Luzon. It is composed of five provinces—Batanes, Cagayan, Isabela, Nueva Vizcaya, and Quirino—and is known for its vast river systems, fertile plains, and rugged mountain ranges.

This page serves as the central administrative hub for all LGUs within Region II.

by prielsantillan.blogspot.com

Region Overview

  • Island Group: Luzon
  • Regional Center: Tuguegarao City
  • Provinces: 5
  • Cities: 4
  • Municipalities: 89
  • Barangays: 2,300+
  • PSGC Code: 02000000

Region II is defined by the Cagayan River Basin, the largest river basin in the Philippines, and the Sierra Madre and Cordillera mountain ranges.

Provinces of Region II

Batanes

  • Capital: Basco
  • Batanes Administrative Page
  • Cities & Municipalities of Batanes

Cagayan

  • Capital: Tuguegarao City
  • Cagayan Administrative Page
  • Cities & Municipalities of Cagayan

Isabela

  • Capital: Ilagan City
  • Isabela Administrative Page
  • Cities & Municipalities of Isabela

Nueva Vizcaya

  • Capital: Bayombong
  • Nueva Vizcaya Administrative Page
  • Cities & Municipalities of Nueva Vizcaya

Quirino

  • Capital: Cabarroguis
  • Quirino Administrative Page
  • Cities & Municipalities of Quirino

Cities of Region II

Component & Independent Cities

  • Tuguegarao City – Regional Center
  • Ilagan City – Provincial Capital of Isabela
  • Cauayan City – Commercial Hub
  • Santiago City – Independent Component City

Municipalities of Region II

Region II contains 89 municipalities, organized by province. Each province’s LGU index page provides complete listings:

  • Batanes LGUs
  • Cagayan LGUs
  • Isabela LGUs
  • Nueva Vizcaya LGUs
  • Quirino LGUs

Geography & Environment

Landscape

Region II features:

  • The Cagayan River, the longest river in the Philippines
  • The Sierra Madre mountain range
  • The Cordillera foothills
  • Fertile agricultural plains
  • Coastal zones (Cagayan, Batanes)

Climate

  • Tropical monsoon
  • Dry season: November–April
  • Wet season: May–October
  • Typhoon corridor (especially Cagayan & Isabela)

Cultural & Historical Profile

Region II is home to:

  • Ibanag
  • Itawes
  • Ilocano
  • Gaddang
  • Yogad
  • Ivatan (Batanes)

Cultural highlights include:

  • Ivatan stone houses
  • Cagayan churches
  • Isabela heritage towns
  • Indigenous Cordilleran communities in Nueva Vizcaya

Economic Profile

Key Sectors

  • Agriculture (corn, rice, bananas, tobacco)
  • Fisheries
  • Livestock
  • Trade & services
  • Tourism (Batanes, Callao Cave, Sierra Madre eco‑tourism)

Major Infrastructure

  • Tuguegarao Airport
  • Cauayan Airport
  • National highways connecting Cagayan Valley to Central Luzon
  • Magat Dam (Isabela)

Internal Links

Conclusion

Region II – Cagayan Valley is one of Luzon’s most geographically diverse and agriculturally productive regions. This administrative page provides a complete overview of its provinces, cities, municipalities, and LGU structure, forming a key part of your national administrative silo