Administrative Division

The Philippines is divided into three island groups: Luzon, Visayas, and Mindanao. As of March 2010, these were divided into 17 regions, 80 provinces, 138 cities, 1,496 municipalities, and 42,025 barangays. In addition, Section 2 of Republic Act No. 5446 asserts that the definition of the territorial sea around the Philippine archipelago does not affect the claim over Sabah. Region Designation Regional center Ilocos Region Region I San Fernando, La Union Cagayan Valley Region II Tuguegarao, Cagayan Central Luzon Region III San Fernando, Pampanga CALABARZON Region IV-A Calamba, Laguna MIMAROPA Region IV-B Calapan, Oriental Mindoro Bicol Region Region V Legazpi, Albay Western Visayas Region VI Iloilo City Central Visayas Region VII Cebu City Eastern Visayas Region VIII Tacloban Zamboanga Peninsula Region IX Pagadian[79][80] Northern Mindanao Region X Cagayan de Oro Davao Region Region XI Davao City SOCCSKSARGEN Region XII Koronadal, South Cotabato Caraga Region XIII Butuan Autonomous Region in Muslim Mindanao ARMM Cotabato City Cordillera Administrative Region CAR Baguio National Capital Region NCR Manila