Apache, Mescalero-Chiricahua
[apm] 6b (Threatened). 1,500 (Golla 2007). 1,500 Mescalero in New Mexico, 3 Chiricahua in Oklahoma (Golla 2007). Ethnic population: More than 3,000 Mescalero (Golla 2007). 175 Chiricawa, including 149 in New Mexico (2000 census).
Apache, Western
[apw] 6b (Threatened). 14,000 (Golla 2007). 6,000 on San Carlos, 7,000 on Fort Apache Reservation (White Mountain Apache Tribe); smaller numbers at Tonto, Camp Verde, and Fort McDowell reservations (Golla 2007). Ethnic population: 20,157 (Ichihashi-Nakayama, Yumitani, and Yamamoto 2007).
Arapaho
[arp] 6b (Threatened). 1,000 (Golla 2007), decreasing. Ethnic population: 5,940 (Golla 2007).
Chamorro
[cha] 6b (Threatened). 18,000 in United States (2010 census).
Cherokee
[chr] 6b (Threatened). 10,400 (2010 census). 130 monolinguals. Spoken by 10,000 of the 122,000 member Cherokee Nation in Oklahoma, by 1,000 of the 10,000 Eastern Band of Cherokees in North Carolina, by a high percentage of the 7,500 members of the United Keetoowah Band of Oklahoma and Arkansas (Golla 2007). Ethnic population: 139,500 (Golla 2007).
Cheyenne
[chy] 6b (Threatened). 2,100 (Golla 2007). Spoken by 1,700 in Montana, 400 in Oklahoma (Golla 2007). Ethnic population: 4,000 in Montana (Golla 2007).
Choctaw
[cho] 6b (Threatened). 10,400 (2010 census), decreasing. Ethnic population: 120,400 including 111,400 in Oklahoma (1998 Choctaw Nation of Oklahoma). 20,000 in Oklahoma (Golla 2007).
Crow
[cro] 6b (Threatened). 3000 (Golla 2007), decreasing. Ethnic population: 8,500 (Golla 2007).
Dakota
[dak] 6b (Threatened). 18,800 in United States (2010 census), decreasing. 31 monolinguals (1990 census). 25,000 L1 speakers of all Sioux dialects in a total population of 103,000 (Golla 2007). Population total all countries: 20,460. Ethnic population: 5,000 Yanktonais (1997 D. Parks); 20,475 (2000 census).
Havasupai-Walapai-Yavapai
[yuf] 6b (Threatened). 1,600 (Golla 2007). 500 Havasupai, 1,000 Walapai, 100 to 150 Yavapai (Golla 2007). Ethnic population: 3,860 including 570 Havasupai, 1,870 Walapai, 1,420 Yavapai (Ichihashi-Nakayama 2004).
Hopi
[hop] 6b (Threatened). 6,780 (2010 census), decreasing. 40 monolinguals. Ethnic population: 7,350 (Golla 2007).
Inupiatun, North Alaskan
[esi] 6b (Threatened). May include Northwest Alaska Inupiatun [esk]. All Inupiatun: 3,000 (includes [esk]) (Golla 2007). Ethnic population: 6,420 (2000 census).
Inupiatun, Northwest Alaska
[esk] 6b (Threatened). 5,580 (2010 census), decreasing. All Inuit languages: 75,000 out of 91,000 in the ethnic group (1995 M. Krauss). Census lists this as Eskimo. All Inupiatun: 13,500 (includes [esi]) (Golla 2007). Ethnic population: All Inupiatun: 13,500 (includes [esi]) (Golla 2007).
Jemez
[tow] 6b (Threatened). 1,790 (Ichihashi-Nakayama, Yumitani, and Yamamoto 2007), decreasing. 6 monolinguals (1990). 2,009 listed as Towa in 2000 census. Ethnic population: 1,940 (Ichihashi-Nakayama, Yumitani, and Yamamoto 2007).
Keres, Eastern
[kee] 6b (Threatened). 6,680 (Golla 2007). Population includes 500 Zia speakers, 390 Santa Ana, 2,340 San Felipe, 2,850 Santo Domingo, 600 Cochiti (Golla 2007). 2000 census lists 11,200 as Keres. Ethnic population: 8,100 including 1,200 Cochiti, 2,600 San Felipe, 650 Santa Ana, 2,850 Santo Domingo, 800 Zia (Golla 2007).
Keres, Western
[kjq] 6b (Threatened). 3,990 (Ichihashi-Nakayama, Yumitani, and Yamamoto 2007). 1,930 Acoma, 2,060 Laguna (Ichihashi-Nakayama, Yumitani, and Yamamoto 2007); 2000 census lists 11,200 as Keres. Ethnic population: 10,700 including 3,860 Acoma, 6,870 Laguna (Ichihashi-Nakayama, Yumitani, and Yamamoto 2007).
Kickapoo
[kic] 6b (Threatened). 400 in United States (Golla 2007), decreasing. 6 monolinguals. Population total all countries: 510. Ethnic population: 820 (2000 census).
Lakota
[lkt] 6b (Threatened). 6,000 in United States (1997 R. Pustet), decreasing. 25,000 L1 speakers of all Sioux dialects in a total population of 103,000 (Golla 2007). Population total all countries: 6,190. Ethnic population: 20,000 (1997 R. Pustet). 103,255 ethnic Sioux in the United States (1990 census).
Micmac
[mic] 6b (Threatened). 230 in United States (2010 census). 8,150 L1 speakers in Canada and the United States(Golla 2007). Ethnic population: 20,000 in both Canada and the United States (Golla 2007).
Mikasuki
[mik] 6b (Threatened). 190 (2010 census). 35 monolinguals. Spoken by most of the 400 members of the Miccosukee Tribe as well as by many of the 2,700 members of the Seminole Tribe (Golla 2007).
Mohawk
[moh] 6b (Threatened). 3,000 in United States (Golla 2007). 1,300 (2000 census), which also lists 190 Iroquois. Ethnic population: 6,000 (1997); 1,303 (2000 census).
Muskogee
[mus] 6b (Threatened). 4,000 (Golla 2007). 45 monolinguals. Spoken by 4,000–6,000 residents of the former territory of the Muscogee Nation and Seminole Nation in Oklahoma and by fewer than 200 of the Seminole Tribe of Florida (Golla 2007). Ethnic population: 52,000 (1997 C. Pye).
Navajo
[nav] 6b (Threatened). 171,000 (2010 census). 7,600 monolinguals. Ethnic population: 266,000 (Ichihashi-Nakayama, Yumitani, and Yamamoto 2007).
Ohlone, Northern
[cst] 6b (Threatened). Subdialects of East Bay were Huchiun (Juichun), Niles (Chocheño), San José, San Lorenzo. Soledad may be transitional between Northern and Southern Ohlone.
Plautdietsch
[pdt] 6b (Threatened). 12,000 in United States (2000).
Purepecha
[tsz] 6b (Threatened). 15,000 in United States (2005 census).
Shoshoni
[shh] 6b (Threatened). 1,000 (Golla 2007). Also 1,000 speakers who are not fluent. Ethnic population: 7,000 (1977 SIL).
Tewa
[tew] 6b (Threatened). 1,500 (Golla 2007), decreasing. 18 monolinguals (1990 census). 1,200 speakers in New Mexico, 300 in Arizona (Golla 2007). Ethnic population: 4,500 (Golla 2007).
Tiwa, Southern
[tix] 6b (Threatened). 1,600 (Golla 2007), decreasing. 1,500 Isleta, 100 Sandia speakers (Golla 2007). Ethnic population: 4,500, including 4,000 Isleta, 500 Sandia (Golla 2007).
Tohono O’odham
[ood] 6b (Threatened). 14,000 in United States (Golla 2007). 180 monolinguals (1990 census). Population total all countries: 14,094. Ethnic population: 33,000, including 20,000 Papago, 13,000 Pima (Ichihashi-Nakayama 2004).
Ute-Southern Paiute
[ute] 6b (Threatened). 920 (Golla 2007). 20 monolinguals (1990 census). 3 Chemehuevi on Chemehuevi Reservation, 10 on Colorado River Reservation (Hinton 1994). Ethnic population: Ute: 4,800; Southern Paiute: 1,430 (Golla 2007).
Yaqui
[yaq] 6b (Threatened). 430 in United States (2010 census). 2 monolinguals. Ethnic population: 8,000 (Golla 2007).
Yupik, Central
[esu] 6b (Threatened). 10,000 (Golla 2007). Ethnic population: 21,000 (1995 M. Krauss).
Zuni
[zun] 6b (Threatened). 9,650 (2000 SIL), increasing. Few, if any, monolinguals (2000). 2000 census lists 7,010 who use the language in the home. Ethnic population: 9,650.