74,600 (2000 INALI). Over 100,000 Mazatec speakers live outside the Mazatec homeland, mostly in major cities (2005 census). Probably at least half speak L1. No monolinguals.
Oaxaca state: Huautla northeast to Presa Miguel Aleman, and Puebla.
San Mateo, San Miguel, Mazateco de presa alto, Mazateco del Norte. 90% intelligibility of San Jerónimo Tecóatl [maa] (most similar, but less in outlying areas), 60% of Mazatlán, 35% of Jalapa [maj]. Lexical similarity: 94% with San Miguel, 93% with San Mateo, 80% with Soyaltepec, 78% with San Pedro Ixcatlán, 74% with Jalapa de Díaz.
Short words; tonal; whistle speech, distinguishing tones of the spoken language (Cowan 1948, Cowan 1952).
Latin script [Latn].
Traditional religion, Christian.