| Place | Postal Code |
|---|---|
| Hoi, Phouxai | 04000 |
| Kanvaang, Phouxai | 04000 |
| Mokkala, Phouxai | 04000 |
| Namheng, Phouxai | 04000 |
| Nampang, Phouxai | 04000 |
| Namtouy, Phouxai | 04000 |
| Ngorn, Phouxai | 04000 |
| Pou, Phouxai | 04000 |
| Tangchong, Phouxai | 04000 |
| Tangdou, Phouxai | 04000 |
| Thaentho, Phouxai | 04000 |