2,100 (Golla 2007). Spoken by 1,700 in Montana, 400 in Oklahoma (Golla 2007). Ethnic population: 4,000 in Montana (Golla 2007).
Northern Cheyenne Reservation, southeastern Montana; associated with Arapaho in western Oklahoma.
Summer camp for children in Montana where Cheyenne taught by fluent speakers (1998). Taught in Dull Knife Memorial College and at Saint Labre Indian School in Montana (2007). Middle-aged or older in Oklahoma, some children in Montana.