 In the 2000 General Census by INEGI 2,641 people named themselves as speakers of the Chichimeca Jonaz language.Of these 1,433 speakers lived in Guanajuato, and the other 115 in San Luis Potosí.Their language belongs to the Pamean sub-branch of the Oto-Pamean branch of the Oto-Manguean language family, the closest relative of the Chichimeca Jonaz language is the Pame language.