770,000 (2000 census). Ethnic population: 1,042,000 (2011 census).
Sumatera Utara province: Batu, Nias and Mursala islands. Alasa, Sirombu and Mandrehe (Northwest dialect); Gomo, and south in Teluk Dalam and Batu islands (Central dialect).
North Nias (Gunung Sitoli), South Nias, West Nias, Northwest Nias, Central Nias.
Vigorous. Home, Community; Mixed use: Religion, Work, Education. All ages. Positive attitudes. Also use Indonesian [ind], but with limited proficiency.
Latin script [Latn].
North dialect (particularly Gunung Sitoli) has high prestige and is a lingua franca in Nias. The South dialect (particularly Teluk Dalam variety) has lower prestige, especially in northern Nias, and is considered by many Nias speakers from other areas as unrefined. Christian.