| Language | Population | Bloc | Family | Cluster | Band | |
|---|---|---|---|---|---|---|
| ● Owa | 9,910 | Austronesian | Oceanic | Malaita-San Cristobal | San Cristobal | |
| ● Arosi | 9,800 | Austronesian | Oceanic | Malaita-San Cristobal | San Cristobal | |
| ● Kahua | 7,510 | Austronesian | Oceanic | Malaita-San Cristobal | San Cristobal | |
| ● Tairaha | 7,230 | Austronesian | Oceanic | Malaita-San Cristobal | San Cristobal | |
| ● Fagani | 1,310 | Austronesian | Oceanic | Malaita-San Cristobal | San Cristobal |