| Language | Population | Bloc | Family | Cluster | Band | |
|---|---|---|---|---|---|---|
| ● Dakota | 116,160 | Siouan | Dakota | |||
| ● Lakota | 64,100 | Siouan | Dakota | |||
| ● Osage | 16,761 | Siouan | Dhegiha | |||
| ● Crow | 10,700 | Siouan | Missouri Valley | |||
| ● Ho-Chunk | 7,180 | Siouan | ||||
| ● Assiniboine | 4,970 | Siouan | Dakota | |||
| ● Stoney | 4,160 | Siouan | Dakota | |||
| ● Omaha-Ponca | 3,610 | Siouan | Dhegiha | |||
| ● Quapaw | 2,880 | Siouan | Dhegiha | |||
| ● Catawba | 714 | Siouan | ||||
| ● Mandan | 528 | Siouan | ||||
| ● Hidatsa | 480 | Siouan | Missouri Valley |