Chatino, Nopala
[cya] 5 (Developing). 8,940 (2000 INALI). 2,300 monolinguals.
Chatino, Western Highland
[ctp] 5 (Developing). 16,000 (2000 INALI). 6,000 monolinguals (1990 census).
Chinantec, Comaltepec
[cco] 5 (Developing). 2,000 (1990 census). 150 monolinguals. Ethnic population: 2,000.
Chinantec, Lalana
[cnl] 5 (Developing). 10,700 (2000 INALI). 2,500 monolinguals.
Chinantec, Lealao
[cle] 5 (Developing). 2,000 (1990 census). 500 monolinguals.
Chinantec, Ojitlán
[chj] 5 (Developing). 37,900 (2000 INALI). 2,800 monolinguals.
Chinantec, Sochiapam
[cso] 5 (Developing). 3,590 (2000 INALI). 730 monolinguals (1990 census). Ethnic population: 6,300.
Chol
[ctu] 5 (Developing). 145,000 (2000 INALI). 40,000 monolinguals. 10,000 in Sabanilla.
Cora, El Nayar
[crn] 5 (Developing). 9,480 in Mexico (2000 INALI).
Cora, Santa Teresa
[cok] 5 (Developing). 3,880 (2000 INALI).
Huave, San Mateo del Mar
[huv] 5 (Developing). 11,000 (2005 census). 1,550 monolinguals.
Huichol
[hch] 5 (Developing). 17,800 (2000 INALI). Ethnic population: 20,000 to 50,000.
Lacandon
[lac] 5 (Developing). 560 (2000 INALI). Ethnic population: 1,000 (2000).
Mam
[mam] 5 (Developing). 7,980 in Mexico (2000 INALI).
Maya, Yucatec
[yua] 5 (Developing). 735,000 in Mexico (2000 INALI). 8% monolinguals (2007). Population total all countries: 766,000.
Mayo
[mfy] 5 (Developing). 32,900 (2000 INALI). 120 monolinguals (1995 census). Ethnic population: 100,000 (1983).
Mazahua, Central
[maz] 5 (Developing). 74,000 (2000 INALI).
Mazatec, Ayautla
[vmy] 5 (Developing). 3,700 (2005 census). 2,800 monolinguals.
Me’phaa, Malinaltepec
[tcf] 5 (Developing). 37,500 (2000 INALI). 8,000 monolinguals (2011 SIL).
Me’phaa, Tlacoapa
[tpl] 5 (Developing). 7,500 (2005 INALI).
Mexican Sign Language
[mfs] 5 (Developing). 130,000 (2010 SIL). Population based on 87,000–100,000 mainly monolingual users from 1986 (T. Smith-Stark), adjusted for population growth since 1986 (2011 S. Dufoe).
Mixe, Coatlán
[mco] 5 (Developing). 5,000 (1993 SIL). All Mixe languages: 90,000 (1993 SIL).
Mixe, Isthmus
[mir] 5 (Developing). 20,000 (1990 SIL).
Mixe, Juquila
[mxq] 5 (Developing). 8,000 (2002 SIL).
Mixe, Mazatlán
[mzl] 5 (Developing). 19,200 (2000).
Mixe, North Central
[neq] 5 (Developing). 13,000 (2002 SIL). Ethnic population: 13,000 (2002 SIL).
Mixe, Totontepec
[mto] 5 (Developing). 5,470 (2000 INALI). 870 monolinguals.
Mixtec, Alacatlatzala
[mim] 5 (Developing). 30,000 in Mexico (2011 SIL). 60% monolingual.
Mixtec, Coatzospan
[miz] 5 (Developing). 2,090 (2000 INALI). 300 monolinguals (2005 census).
Mixtec, Magdalena Peñasco
[xtm] 5 (Developing). 7,350 (2005 census). 1,170 monolinguals (2000 census).
Mixtec, Northern Tlaxiaco
[xtn] 5 (Developing). 12,300 (2000 INALI). 1,600 monolinguals.
Mixtec, Peñoles
[mil] 5 (Developing). 5,500 in Mexico (2000 INALI). 1,000 or more monolinguals.
Mixtec, San Juan Colorado
[mjc] 5 (Developing). 7,820 (2000 INALI). 1,890 monolinguals.
Mixtec, Silacayoapan
[mks] 5 (Developing). 18,700 in Mexico (2000). 1,500 monolinguals (1990 census).
Mixtec, Southwestern Tlaxiaco
[meh] 5 (Developing). 7,340 (2000 census). 1,000 monolinguals.
Mixtec, Tezoatlán
[mxb] 5 (Developing). 5,080 (2005 census). 670 monolinguals.
Nahuatl, Central Huasteca
[nch] 5 (Developing). 200,000 (2000 census).
Nahuatl, Eastern Huasteca
[nhe] 5 (Developing). 410,000 (1991 SIL).
Nahuatl, Highland Puebla
[azz] 5 (Developing). 125,000 (1983).
Nahuatl, Isthmus-Mecayapan
[nhx] 5 (Developing). 20,000 (1994 SIL).
Nahuatl, Northern Oaxaca
[nhy] 5 (Developing). 9,000 (1990 census). 1,400 monolinguals.
Nahuatl, Southeastern Puebla
[npl] 5 (Developing). 92,000 (1991 SIL).
Nahuatl, Western Durango
[azn] 5 (Developing). 900 (2011 SIL).
Nahuatl, Western Huasteca
[nhw] 5 (Developing). 400,000 (1991 SIL).
Nahuatl, Zacatlán-Ahuacatlán-Tepetzintla
[nhi] 5 (Developing). 17,100 (2007 SIL).
Otomi, Eastern Highland
[otm] 5 (Developing). 49,300 (2007). 4,700 monolinguals.
Otomi, Estado de México
[ots] 5 (Developing). 20,000 (2010 SIL). 440 monolinguals.
Otomi, Mezquital
[ote] 5 (Developing). 100,000 in Mexico (1990 census).
Otomi, Querétaro
[otq] 5 (Developing). 33,000 (1990 census). 1,900 monolinguals (1990).
Otomi, Tenango
[otn] 5 (Developing). 10,000 (1990 census). 2,200 monolinguals (1990).
Popoloca, San Juan Atzingo
[poe] 5 (Developing). 5,000 (1991 SIL). 500 monolinguals, mostly women.
Popoluca, Highland
[poi] 5 (Developing). 30,000 (1992 SIL).
Purepecha
[tsz] 5 (Developing). 40,000 in Mexico (2005 census). Population total all countries: 55,000.
Tarahumara, Western
[tac] 5 (Developing). 10,000 (2000 INALI).
Tepehua, Tlachichilco
[tpt] 5 (Developing). 3,000 (1990 SIL).
Tepehuan, Northern
[ntp] 5 (Developing). 6,200 (2005 census).
Tepehuan, Southeastern
[stp] 5 (Developing). 10,600 (2005 census).
Tojolabal
[toj] 5 (Developing). 34,300 (2000 INALI). 7,700 monolinguals.
Totonac, Coyutla
[toc] 5 (Developing). 48,100 (2000). All Totonac languages: 196,000 (1980 census).
Totonac, Highland
[tos] 5 (Developing). 120,000 (1982 SIL).
Totonac, Papantla
[top] 5 (Developing). 80,000 (1982 SIL).
Triqui, Copala
[trc] 5 (Developing). 25,000 in Mexico (2007 SIL). Population total all countries: 30,000.
Triqui, San Martín Itunyoso
[trq] 5 (Developing). 2,000 (1983).
Tzeltal
[tzh] 5 (Developing). 372,000 (2000 INALI). 50,000 monolinguals.
Yaqui
[yaq] 5 (Developing). 11,800 in Mexico (2000 INALI). Population total all countries: 12,230.
Zapotec, Amatlán
[zpo] 5 (Developing). 10,000 (2000 SIL). 20% monolinguals.
Zapotec, Cajonos
[zad] 5 (Developing). 5,000 in Mexico (1993 SIL). Many monolinguals.
Zapotec, Guevea de Humboldt
[zpg] 5 (Developing). 4,720 (2000 INEGI).
Zapotec, Isthmus
[zai] 5 (Developing). 85,000 (1990 census).
Zapotec, Lachixío
[zpl] 5 (Developing). 6,500 (1990 census). 50% monolingual.
Zapotec, Mitla
[zaw] 5 (Developing). 19,500 (1983 SIL). Less than 1% monolingual. 4,500 in Matatlán (1983 SIL).
Zapotec, Mixtepec
[zpm] 5 (Developing). 7,000 (1991 SIL).
Zapotec, Ozolotepec
[zao] 5 (Developing). 6,500 (1990 census). People in San Marcial, San Gregorio, San Esteban, and Santo Domingo are monolingual.
Zapotec, Quioquitani-Quierí
[ztq] 5 (Developing). 4,000 (1991 SIL).
Zapotec, Rincón
[zar] 5 (Developing). 29,200 (2000).
Zapotec, San Juan Guelavía
[zab] 5 (Developing). 28,000 in Mexico (1990 census). Population total all countries: 28,550.
Zapotec, San Pedro Quiatoni
[zpf] 5 (Developing). 14,800 (2000).
Zapotec, Santa María Quiegolani
[zpi] 5 (Developing). 2,000 (2000 census).
Zapotec, Santo Domingo Albarradas
[zas] 5 (Developing). 5,500 (1980 census).
Zapotec, Southern Rincon
[zsr] 5 (Developing). 12,000 (1990 census).
Zapotec, Texmelucan
[zpz] 5 (Developing). 4,100 (1992 SIL).
Zapotec, Yalálag
[zpu] 5 (Developing). 3,500 in Mexico (2005). 2,000 are in Yalálag.
Zapotec, Yatee
[zty] 5 (Developing). 5,000 (2004 SIL). 3,000 for Yatee and 2,000 for Lachirioag.
Zapotec, Yatzachi
[zav] 5 (Developing). 2,500 in Mexico (1990 census).
Zapotec, Zoogocho
[zpq] 5 (Developing). 1,000 in Mexico (1991 SIL). Population total all countries: 1,400.