km2 and the administrative center at Namlea. It is divided into 10 districts: Namlea (center in Namlea), Waeapo (center – Waenetat), Waplau (center – Waplau), Batubual (center – Ilath), Teluk Kaiely (centre – Kaiely), Waelata (centre – Basakak), Lolong Guba (centre – Kubalahin), Lilialy (centre – Sawa), Air Buaya (center – Air Buaya) and Fena Leisela (center – Wamlana). The governor (Regent or , as of October 2009) is Husni Hentihu and Vice Regent is Ramli Umasugi. South Buru Regency (administrative center Namrole) has an area of 5,060 km2 and includes Ambelau island southeast of Buru (and other small islets). Its governing structure has not been completed as of February 2010, and the current acting Regent is A. R. Uluputti. The regency is divided into 6 districts: Namrole (centre – Elfule), Kepala Madan (centre – Biloro), Leksula (centre – Leksula), Fena Fafan (centre – Waekatin), Waesama (centre – Wamsisi), and Ambalau (centre – Siwar); the last district is entirely located on the island of Ambalau. Population As of the 2010 Census, the population of the islands administered as Buru was 161,828 people; at the 2020 Census this had risen to 210,648 with about 64.2% in the northern regency and 35.8% in the southern; the southern regency included the smaller island of Ambelau to the southeast of Buru. In the early 2000s, most of the population was concentrated in the coastal areas, and comprised the following major groups: indigenous Buru (33,000 people), Lisela (13,000), Ambelau (6,000) and Kayeli people (800); migrants from Java, and migrants from other Maluku Islands. The migration to Buru was stimulated by the Dutch colonial administration in the 1900s, and by Indonesian authorities in the 1950s–1990s. The local communities speak Buru, Lisela and Ambelau languages in everyday life, however, the national Indonesian language is used as a means of international communication and is also used for writing. Also common is Ambon dialect of Malay language (Melayu Ambon). The latter is widely used in the Maluku Islands as a second language and is a simplified form of Indonesian language with additions of the local lexicon. Some local dialects, such as the Hukumina and Kayeli, became extinct in the second half of the 20th century. Religious composition of the population is heterogeneous: the number of islanders practising Sunni Islam (90%) and Christianity (10%) and the rest – mainly residents of remote mountain areas – still follow traditional local cults