Angra do Heroísmo , locally referred to as Angra, is a municipality and city (of approximately 21,300 people) on the island of Terceira, within the Portuguese autonomous region of the Azores. The municipal area has a population of 35,581 and an area of 239.0 km2 (92.3 sq mi). Along with Praia da Vitória to the north, it is one of two municipal administrative divisions that are comprised by Terceira. Together with Ponta Delgada (São Miguel) and Horta (Faial), Angra is one of the three regional capitals of the Azores. Each capital is responsible for one of the three branches of government; Angra is the location of the judicial branch (the Supreme Court of the Azores), in addition to being the religious centre of the Archdiocese of Azores.