Provinces and regions of the Philippines.
The Philippines is divided into three island groups: Luzon, Visayas, and Mindanao. These are divided into 17 regions, 80 provinces, 120 cities, 1,511 municipalities, and 42,008 barangays.
| Region | Designation | Regional center |
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| 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, Zamboanga del Sur | | Northern Mindanao | Region X | Cagayan de Oro City | | 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 |
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