L1 users: 13,000 (Himmelmann 2001).
Gorontalo province: Pohuwato regency; Sulawesi Tengah province: Buol and Tolitoli regencies, Baolan, Dampal Utara, Dondo, Galang, and Tolitoli Utara sub-districts; at least 25 villages.
Children receive their education in Indonesian [ind] (Wurm 2007).
Most of the hill Dondo interact socially with the Dondo coastal population which reinforces the use of Dondo in a variety of functions. Muslim.