Most Muslims in the Philippines live on the island of Mindanao, the Sulu Archipelago and Palawan. The Bangsamoro Autonomous Region in Muslim Mindanao (BARMM) is the region of the Philippines that is composed of all the Philippines' predominantly Muslim provinces, namely: Basilan (except Isabela City), Lanao del Sur, Maguindanao, Sulu and Tawi-Tawi. It also comprised the cities of Marawi, Lamitan, and Cotabato City and the 63 Barangays in North Cotabato who opted to join the autonomous region.