| Population | 8,720 |
| Maj. Religion | Christianity |
| Hub Country | Papua New Guinea |
| Countries | 1 |
| Christian | 96% |
| Evangelical | 27% |
| Engaged | Yes |
| Bible Status | NT Only |
| Jesus Film | |
| Gospel Recordings | Y |
| Audio Scripture | |
| Radio | |
| Bible Stories | |
| TV | No |
| Family | East Papuan |
| Cluster | Bougainville |
| Segment | East Bougainville |
| Band | Buin |
| Usage | Strong |
| ISO | siw |
| Country | Population | Christians | Evangelicals | |
|---|---|---|---|---|
| Papua New Guinea | 8,720 | 96.0% | 27.0% | |
| Language | Population | Christian | Bible | |
|---|---|---|---|---|
| Terei | 37,200 | 98.00% | Portions Only | |
| Siwai | 8,720 | 96.00% | NT Only | |
| Uisai | 4,700 | 95.00% | Portions Only |