| Locality | Postal Code |
|---|---|
| Kampong Belunu, Lamunin | TG1743 |
| Kampong Bentudoh, Lamunin | TG2943 |
| Kampong Biong, Lamunin | TG3343 |
| Kampong Bukit Sulang, Lamunin | TG2743 |
| Kampong Kuala Abang, Lamunin | TG1343 |
| Kampong Lamunin, Lamunin | TG2343 |
| Kampong Layong, Lamunin | TG1143 |
| Kampong Panchong, Lamunin | TG3143 |
| Kampong Pengkalan Dong, Lamunin | TG1943 |
| Kampong Pengkalan Tangsi, Lamunin | TG1543 |
| Kampong Piasan, Lamunin | TG2543 |
| Kampong Tanjong Dangar, Lamunin | TG2143 |
| Postal Codes in Tutong | |
|---|---|
| Ukong | Telisai |
| Tanjong Maya | Rambai |
| Pekan Tutong | Lamunin |
| Kiudang | Keriam |