Population - 117,000 inhab. - Narik, 27,000; Sutumai, 26,000; Dodo, 20,000; Matutu, 19,000; Hakerehe, 15,000; Lopes Gusmao, 10,000. (2015)

Density - 137 inhab./km²

Major Cities - Misuwai, 21,000; Nikai, 19,000; Santakrus, 19,000; Kelondo, 14,000; Hakerehe, 11,000; Lopes Gusmao, 10,000.

Dialects - Kauta Lasahi, 27,000; Terong, 55,000; Forti (Lopes Gusmao, Matutu and Hakerehe), 32,000; Hakerehe (Hakerehe), 2,000; Atawodo (Homafak), 1,000. 

Religions - Christians (Forti), Animists (aborigines).

GDP per Capita - KAH 30,185.00 yearly (2015)

Participation in the GDP - 2%

Industry - Food.

Agriculture - Rice, coconut, coffee, fruits and sago; fowl and pork.

Climate - Equatorial (monsoon); average temperature in the rainy season, 27ºC and, in dry season, 25ºC. Rain: 2,350 mm yearly.

Major Peak - volcano Ra'u 837 m, in the island of Narik.

Rivers - Motehe, Behambili, Ila and Riomolo.

Name Origin - Terong derives from "tasi terong", that means "central sea" in Kaupelanese.