Zip Code / Postal Code of Isabela de, Basilan

Isabela, officially the City of Isabela (Chavacano: Ciudad de Isabela; Tausūg: Dāira sin Isabela; Yakan: Siudad Isabelahin; Filipino: Lungsod ng Isabela), is a 4th class component city and de facto capital of the province of Basilan, Philippines. According to the 2020 census, it has a population of 130,379 people making it the most populous city in the province. It is also colloquially known as Isabela de Basilan to differentiate the city's name from the province of Isabela in Luzon. While administratively the island province of Basilan is part of the Bangsamoro Autonomous Region in Muslim Mindanao (BARMM), Isabela, which previously served as its capital since the province's creation, itself is not part of this region, being placed instead under the Zamboanga Peninsula region. While the city is still regulated by the Basilan provincial government and provincial services are provided by Basilan, regional services are provided by the Zamboanga Peninsula regional government.
Source: Wikipedia