Great Aceh Regency (Indonesian: Kabupaten Aceh Besar) is a regency of the Indonesian province of Aceh. The regency covers an area of 2,903.49 square kilometres and had a population of 351,418 at the 2010 Census[3] and 405,535 at the 2020 Census;[4] the official estimate as at mid 2021 was 409,527.[5] The Regency is located at the northwest tip of Sumatra island and surrounds the provincial capital of Banda Aceh.