They are spoken in Rondônia in the southern Amazon Basin of Brazil and in northern Bolivia.

According to Kaufman (1990),[1] the Chapacuran family could be related to the extinct Wamo language.

Extinct languages for which Loukotka says 'nothing' is known, but which may have been Chapacuran, include Cujuna, Mataua, Urunumaca, and Herisobocono.

[5] Kitemoka Tapakura Torá Moré Cojubim Jarú Urupá Wanyam Wari' Oro Win Jolkesky (2016) notes that there are lexical similarities with the Irantxe, Puinave-Kak, and Arawa language families due to contact.

[7] Below are Proto-Chapacuran (Proto-Chapakura) reconstructions from the Diachronic Atlas of Comparative Linguistics (DiACL) online,[8] cited from Angenot de Lima (1997).