Zamboanga Peninsula (Region 9)
Zamboanga Peninsula (Region IX), formerly Western Mindanao, is located in the landform of the same name. It consists of the provinces of Zamboanga del Norte, Zamboanga del Sur, Zamboanga Sibugay, and five cities—Zamboanga City;Pagadian City Isabela City Dapitan City and Dipolog City —which are independent of any province. Isabela City is the only territory not on Mindanao island itself and is a part of Basilan. The region's administrative capital is Zamboanga City and the whole region used to be a single province named Zamboanga.
Read more about this topic: Political Divisions Of Mindanao