1,890 (1993 census). 19 ethnic Taiwano (Eduria) (Crevels 2007).
Southern Vaupés Department, Pira-Paraná river and tributaries, Sõnanã, San Miguel, Piedra Ñi, Cachivera Pina, Pacoa, Mitú. Jepa Matsi in Brazil may be dialect.
Barasana and Eduria considered separate languages by the people, and distinct ethnic groups that can intermarry.