100,000 (Wurm and Hattori 1981).
Central Kalimantan Timur Province, Karau river area; Kalimantan Selatan Province, Kotabaru, Balangan, Tabalong regencies; Kalimantan Tengah Province, North, East, and South Barito regencies.
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].