| Language | Population | Bloc | Family | Cluster | Band | |
|---|---|---|---|---|---|---|
| ● Koreguaje | 2,330 | Tucanoan | Western Tucanoan | |||
| ● Tanimuca-Retuara | 1,990 | Tucanoan | Western Tucanoan | |||
| ● Siona | 1,090 | Tucanoan | Western Tucanoan | |||
| ● Secoya | 940 | Tucanoan | Western Tucanoan | |||
| ● Orejon | 490 | Tucanoan | Western Tucanoan |