L1 users: 4,000 (2000 census). 2,000 monolinguals.
Central province: Kairuku-Hiri district, Hiri RLLG; National Capital District, Barai, and Efogi, and Koiari villages north of Koita.
None known. Lexical similarity: 50%–57% with Grass Koiari [kbk] (most similar).
Also use Hiri Motu [hmo].
Latin script [Latn].