Sobei is one of the Sarmi languages spoken in three villages (Sarmi, Sawar, and Bagaiserwar) near the district center of Sarmi in Papua province of Indonesia. Ethnologue (2005) cites two third-party population estimates of 1,000 and 1,850, while Sterner estimates the population at 1,500 (1975) and 2,000 (1987), based on actual residence in the area.