Notes: (a) comprises a group of islands off the north-western tip of Sumatra, of which the largest are Pulau Breuh, Pulau Nasi and Pulau Teunom. (b) includes some smaller islands off the north-western tip of Sumatra but closer to the mainland than Pulo Aceh District - Pulau Bunta and Pulau Batee. (c) comprises southern suburbs of Banda Aceh city, with 105,835 inhabitants in mid 2021.