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.
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Administrative structure of Philippines
03/08/2019
[table]
[tr][td width="250"]Region[/td]
[td width="200"]Designation[/td]
[td width="200"]Regional center[/td][/tr]
[tr][td]Ilocos Region[/td][td]Region I[/td][td]San Fernando, La Union[/td][/tr]
[tr][td]Cagayan Valley[/td][td]Region II[/td][td]Tuguegarao, Cagayan[/td][/tr]
[tr][td]Central Luzon[/td][td]Region III[/td][td]San Fernando, Pampanga[/td][/tr]
[tr][td]CALABARZON[/td][td]Region IV-A[/td][td]Calamba, Laguna[/td][/tr]
[tr][td]MIMAROPA[/td][td]Region IV-B[/td][td]Calapan, Oriental Mindoro[/td][/tr]
[tr][td]Bicol Region[/td][td]Region V[/td][td]Legazpi, Albay[/td][/tr]
[tr][td]Western Visayas[/td][td]Region VI[/td][td]Iloilo City[/td][/tr]
[tr][td]Central Visayas[/td][td]Region VII[/td][td]Cebu City[/td][/tr]
[tr][td]Eastern Visayas[/td][td]Region VIII[/td][td]Tacloban[/td][/tr]
[tr][td]Zamboanga Peninsula[/td][td]Region IX[/td][td]Zamboanga City[/td][/tr]
[tr][td]Northern Mindanao[/td][td]Region X[/td][td]Cagayan de Oro[/td][/tr]
[tr][td]Davao Region[/td][td]Region XI[/td][td]Davao City[/td][/tr]
[tr][td]SOCCSKSARGEN[/td][td]Region XII[/td][td]Koronadal, South Cotabatov[/td][/tr]
[tr][td]Caraga[/td][td]Region XIII[/td][td]Butuan[/td][/tr]
[tr][td]Autonomous Region in Muslim Mindanao[/td][td]ARMM[/td][td]Cotabato City[/td][/tr]
[tr][td]Cordillera Administrative Region[/td][td]CAR[/td][td]Baguio[/td][/tr]
[tr][td]National Capital Region[/td][td]NCR[/td][td]Manila[/td][/tr][/table]
[tr][td width="250"]Region[/td]
[td width="200"]Designation[/td]
[td width="200"]Regional center[/td][/tr]
[tr][td]Ilocos Region[/td][td]Region I[/td][td]San Fernando, La Union[/td][/tr]
[tr][td]Cagayan Valley[/td][td]Region II[/td][td]Tuguegarao, Cagayan[/td][/tr]
[tr][td]Central Luzon[/td][td]Region III[/td][td]San Fernando, Pampanga[/td][/tr]
[tr][td]CALABARZON[/td][td]Region IV-A[/td][td]Calamba, Laguna[/td][/tr]
[tr][td]MIMAROPA[/td][td]Region IV-B[/td][td]Calapan, Oriental Mindoro[/td][/tr]
[tr][td]Bicol Region[/td][td]Region V[/td][td]Legazpi, Albay[/td][/tr]
[tr][td]Western Visayas[/td][td]Region VI[/td][td]Iloilo City[/td][/tr]
[tr][td]Central Visayas[/td][td]Region VII[/td][td]Cebu City[/td][/tr]
[tr][td]Eastern Visayas[/td][td]Region VIII[/td][td]Tacloban[/td][/tr]
[tr][td]Zamboanga Peninsula[/td][td]Region IX[/td][td]Zamboanga City[/td][/tr]
[tr][td]Northern Mindanao[/td][td]Region X[/td][td]Cagayan de Oro[/td][/tr]
[tr][td]Davao Region[/td][td]Region XI[/td][td]Davao City[/td][/tr]
[tr][td]SOCCSKSARGEN[/td][td]Region XII[/td][td]Koronadal, South Cotabatov[/td][/tr]
[tr][td]Caraga[/td][td]Region XIII[/td][td]Butuan[/td][/tr]
[tr][td]Autonomous Region in Muslim Mindanao[/td][td]ARMM[/td][td]Cotabato City[/td][/tr]
[tr][td]Cordillera Administrative Region[/td][td]CAR[/td][td]Baguio[/td][/tr]
[tr][td]National Capital Region[/td][td]NCR[/td][td]Manila[/td][/tr][/table]