Basilan Postal Codes: 7300 to 7306 | Autonomous Region in Muslim Mindanao

Key Facts

Basilan is a province located in the Autonomous Region in Muslim Mindanao in the southern Philippines, forming part of the Sulu Archipelago. Situated approximately 17 kilometers off the southern coast of Zamboanga Peninsula, this island province serves as a vital geographical and cultural bridge between mainland Mindanao and the Sulu Sea islands. With a land area of approximately 1,327 square kilometers, Basilan is characterized by rugged terrain featuring mountainous interiors surrounded by coastal plains, with its highest peak reaching 971 meters above sea level. The province has an estimated population of around 459,000 people, predominantly composed of Yakan, Tausug, and Chavacano ethnic groups, reflecting the region's rich cultural diversity. Administratively, Basilan is divided into 11 municipalities and 2 cities, with Isabela City serving as the provincial capital despite being administratively part of the Zamboanga Peninsula Region. The province's economy primarily relies on agriculture, with coconut, rubber, and coffee as major crops, while fishing remains important along its extensive coastline. For those seeking detailed postal and administrative information, comprehensive data is available for all of Basilan's municipalities and barangays through our regional directory services.