| Tribe | Historic Territory | Present-Day States |
|---|---|---|
| Caddo | East Texas piney woods, Red River valley | TX, LA, OK, AR |
| Tonkawa | Central/Southern Plains | TX, OK, KS |
| Karankawa | Gulf Coast: Galveston Bay to Rio Grande | TX coast |
| Coahuiltecan | South TX / Northern Mexico brush country | TX, Coahuila, Nuevo León, Tamaulipas |
| Jumano | Trans-Pecos, Concho River, Plains margins | NM, TX, Chihuahua |
| Apache (Lipan, Mescalero) | SW US / N Mexico mountains & deserts | TX, NM, AZ, Chihuahua, Coahuila |
| Comanche | Southern Plains (Comanchería) | TX, OK, KS, NM, CO |
Disease, warfare, displacement, and reservation policy eliminated tribal territorial sovereignty by 1875. Descendants maintain cultural identity; some tribes federally recognized (Alabama-Coushatta, Kickapoo, Ysleta del Sur Pueblo in TX).