| Place | Post Code |
|---|---|
| Nam Eng, Namsing | 03000 |
| Namloung, Namsing | 03000 |
| Namsing, Namsing | 03000 |
| Namvang, Namsing | 03000 |
| Palang, Namsing | 03000 |
| All postal codes in Viengphoukha | |
|---|---|
| Namfa, Viengphoukha | |
| Namngeun, Viengphoukha | |
| Namphae, Viengphoukha | |
| Namsing, Viengphoukha | |
| Pakkhan, Viengphoukha | |
| Thiao, Viengphoukha | |
| Thonglat, Viengphoukha | |