Isabela, Basilan

Isabela is a component city of the province of Basilan in the Philippines, officially the City of Isabela, and it is colloquially called Isabela de Basilan to tell it apart from the province of Isabela in Luzon. The 2024 census counted 151,297 residents, which makes it the most populous city in the province. Although the island province of Basilan belongs to the Bangsamoro Autonomous Region in Muslim Mindanao, Isabela is placed instead under the Zamboanga Peninsula region. It served as the provincial capital from the creation of the province, but because the Philippine Statistics Authority lists it as statistically independent from Basilan, the provincial government transferred the capital to Lamitan. The city covers about 224 square kilometres.