||20 (1997 D. Parks), decreasing. Ethnic population: 94 (2000 census).
||North Dakota, Fort Berthold Reservation.
Northern Central United States of America
||Arikaree, Arikari, Arikaris, Ree, Ris
||Caddoan, Northern, Pawnee-Kitsai, Pawnee
||Shifting to English. Mainly older adults.
||Reportedly a group Lewis and Clark met in 1804 in North Dakota. 30,000 were reduced to 6,000 due to smallpox. Arikara instructional material has been published for a language-teaching program. Nearly extinct.