| Place | Post Code |
|---|---|
| Gnot-Hit, Thathiam | 07000 |
| Houaphou, Thathiam | 07000 |
| Mouanghiem, Thathiam | 07000 |
| Namsath, Thathiam | 07000 |
| Naphanhong, Thathiam | 07000 |
| Naphone, Thathiam | 07000 |
| Napouak, Thathiam | 07000 |
| Nathouane, Thathiam | 07000 |
| Navieng, Thathiam | 07000 |
| Phiengdon, Thathiam | 07000 |
| Phouluang, Thathiam | 07000 |
| Phouvieng, Thathiam | 07000 |
| Thehing, Thathiam | 07000 |
| All postal codes in Viengthong | |
|---|---|
| Daohuang, Viengthong | |
| Phanlo, Viengthong | |
| Sakok, Viengthong | |
| Thamla, Viengthong | |
| Thathiam, Viengthong | |