| Population |
Extinct. |
| Region |
Formerly north central Oklahoma; northeast Kansas, Iowa Reservation. |
| Dialects |
Iowa (Baxoje, Ioway), Oto (Jiwere, Otoe, Jiwele, Chiwere), Niutaji (Nyutâchi, Missouri, Missouria). |
| Classification |
Siouan, Siouan Proper, Central, Mississippi Valley, Chiwere |
| Language use |
Iowa and Oto were one language, with some family variations cross-cutting the tribal affiliations. Missouri dialect has been extinct for many years. |
| Comments |
Last fluent speakers of Iowa and Oto died in 1996. Others have some knowledge of the language (1997 Jimm G. GoodTracks). |