The Philippines is divided into three island groups : Luzon, Visayas, and Mindanao. These are divided into seventeen regions, eighty-one provinces, 131 cities, 1,497 municipalities, and 41,994 barangays.

On July 24, 2006, the State of the Nation Address of President Arroyo announced the proposal to create five economic super regions to concentrate on the economic strengths in a specific area.

¹ Names are capitalized because they are acronyms, containing the names of the constituent provinces or cities (see Acronyms in the Philippines).
² These regions formed the former Southern Tagalog region, or Region IV.
³ Palawan was moved from Region IV-B as known as MIMAROPA to Region VI. From November 2005, Region IV-B would be called MIMARO, decreased from five to four provinces and Region VI increased from six to seven provinces.