 Wirangu is usually classified as genetically related to the Thura-Yura language family.Early ethnographers, such as R. H. Mathews stated that the Barngarla, Nauo and Wirangu peoples were "practically the same people in language and customs".In Norman Tindale's estimation, the Wirangu were assigned an original tribal land extending over , embracing the coastal area between Head of Bight, Cape Blanche and Streaky Bay, with an inland extension running north to places like Ooldea, Kokatha, and Kondoolka.