| Place | Post Code |
|---|---|
| Ablison, Cavalla | None |
| Cavalla Big Town Community, Cavalla | None |
| Dinyemilu, Cavalla | None |
| Dololou, Cavalla | None |
| James Town, Cavalla | None |
| Kablaken, Cavalla | None |
| Kablakon, Cavalla | None |
| King Town Community, Cavalla | None |
| Mission Town, Cavalla | None |
| New Town Community, Cavalla | None |
| Sedeken, Cavalla | None |
| Woleken, Cavalla | None |
| All postal codes in Harper | |
|---|---|
| Big Town, Harper | |
| Cavalla, Harper | |
| Fish Town, Harper | |
| Half Graway, Harper | |
| Harper, Harper | |
| Rock Town, Harper | |
| Whole Graway, Harper | |