7,270 (2000 census), increasing. No monolinguals.
Sandaun province: Green River district, Sepik and Green rivers.
Central Abau, Downriver Abau, Downriver border Abau, Upriver Abau (Oriyai).
SOV; nominative-accusative orientation.
Dialect differences are such that (especially young) people from different dialects use Tok Pisin [tpi] between them. Tok Pisin is favored if non-Abau speakers are present. Family, village disputes, cultural events. All ages, but increasingly youth prefer Tok Pisin [tpi]. Most also use Tok Pisin [tpi].
Latin script [Latn].