100,000 (Wurm and Hattori 1981).
Central East Kalimantan Province. Karau river area.
Ajuh, Bakoi (Lampung), Bantian (Bentian), Banuwang, Bawu (Bawo), Benua, Kali, Karau (Beloh), Lawa, Lolang, Mantararen, Njumit, Pasir, Purai, Purung, Taboyan, Tuwang. At least 17 dialects. Tawoyan [twy] may be inherently intelligible. Lexical similarity: 77% with Tawoyan [twy], 53% with Dusun Deyah [dun]. Benua (population 25,000, six subdialects) may be distinct enough to be considered a separate language. (Nikolić 2008).
Also use Bakumpai [bkr].