| City | Region | Country | Time Zone | Population | |
|---|---|---|---|---|---|
| Arawa | Bougainville | Papua New Guinea | Papua New Guinea Time | 40,266 | |
| Kieta | Bougainville | Papua New Guinea | Papua New Guinea Time | 3,611 | |
| Panguna | Bougainville | Papua New Guinea | Papua New Guinea Time | 2,916 | |
| Buka | Bougainville | Papua New Guinea | Papua New Guinea Time | -- |

