Zamboanga Peninsula (geographical region)

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The Zamboanga Peninsula (geographic landform) is a long, semicircular peninsula and the northwestern part of Mindanao Island, in the Mindanao Islands Group region of the southern Philippines. It is located primarily within the Zamboanga Peninsula Administrative Region (Region IX).


The peninsula is connected to the main section of Mindanao Island through an isthmus situated between Panguil Bay and Pagadian Bay.

Zamboanga Peninsula extends southwesterly toward the Sulu Archipelago and Borneo island. It has an area of roughly 5,600 square miles (14,500 square km). It is between the Sulu Sea on the north and west, and the Moro Gulf of the Celebes Sea on the south.

Political subdivisions[edit]

The boundary between the peninsula and the mainland is politically defined by the border between the peninsula's Zamboanga del Sur province and main island's Lanao del Norte province. The geographic Zamboanga Peninsula consists of: the provinces of Zamboanga del Norte, Zamboanga del Sur, Zamboanga Sibugay of Zamboanga Peninsula Administrative Region (Region IX); and the northwestern province of Misamis Occidental in the Northern Mindanao Administrative Region (Region X).

The land of almost 4 million people belonging to the indigenous tribes of tri-people Mindanao, the Christian settlers, the Lumad groups and the Moro groups. the region is believed to be first inhabited by Subanon, which is considered as the largest Lumad ethnic group in Mindanao.

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