Alternate Names: Coicoyán Mixtec, Mixteco del Oeste de Juxtlahuaca
Dialects: Coicoyán, San Juan Piñas, San Martín Peras. 82% intelligibility of Metlatónoc ,, 80% of Silacayoapan ,, 65% of Juxtlahuaca ,, 19% of Cuatzoquitengo, 16% of Zacatepec ,.
Genealogy:
Demographics: 20,000 in Mexico (2005 census). Coicoyan Municipality: 6,150 speakers (2005). San Martin Peras Municipality: 10,000 speakers, plus 2,000 in Santa Cruz Yucucani, 2,000 in San José Yoxocaño. 9,000 monolinguals (2005 census). Coicoyan Municipality: 3,520 monolinguals (2005). San Martin Peras Municipality: 4,820 monolinguals.
Language Use: All domains. All ages. Very little comprehension or use of Spanish [spa].
Writing System: Latin
Nation of Origin: Mexico
Other Comments: Primary school in San Martín. Many work in Culiacán during cold months. Traditional religion, Christian.