| Language | Population | Bloc | Family | Cluster | Band | |
|---|---|---|---|---|---|---|
| ● So | 240,170 | Austro-Asiatic | Mon-Khmer | Katuic | Brou-So | |
| ● Bru, Eastern | 97,160 | Austro-Asiatic | Mon-Khmer | Katuic | Brou-So | |
| ● Bru, Western | 23,400 | Austro-Asiatic | Mon-Khmer | Katuic | Brou-So | |
| ● Khua | 9,530 | Austro-Asiatic | Mon-Khmer | Katuic | Brou-So |