| Locality | Post Code |
|---|---|
| Kampong Bukit Puan, Labi | KE1137 |
| Kampong Gatas, Labi | KE2537 |
| Kampong Kenapol, Labi | KE2737 |
| Kampong Malayan, Labi | KE1537 |
| Kampong Mendaram Besar, Labi | KE3537 |
| Kampong Mendaram Kecil, Labi | KE3737 |
| Kampong Pesilin, Labi | KE2937 |
| Kampong Rampayoh, Labi | KE3337 |
| Kampong Ratan, Labi | KE2137 |
| Kampong Sungai Patai, Labi | KE1337 |
| Kampong Tarawan, Labi | KE3137 |
| Kampong Tenajor, Labi | KE1937 |
| Kampong Teraja, Labi | KE3937 |
| Kampong Terunan, Labi | KE2337 |
| Kampong Tupan Lupak, Labi | KE1737 |
| Belait Postal Codes | |
|---|---|
| Sukang | Seria |
| Melilas | Liang |
| Labi | Kuala Belait |
| Kuala Balai | Bukit Sawat |