| Ort | Postleitzahl |
|---|---|
| Hongsi, Xieng | 09000 |
| Huaychae, Xieng | 09000 |
| Na-Ou, Xieng | 09000 |
| Nahor, Xieng | 09000 |
| Nalieng, Xieng | 09000 |
| Namphuan, Xieng | 09000 |
| Napho, Xieng | 09000 |
| Nasi, Xieng | 09000 |
| Naxai, Xieng | 09000 |
| Phai, Xieng | 09000 |
| Phiavat, Xieng | 09000 |
| Phoneyaeng, Xieng | 09000 |
| Phosy, Xieng | 09000 |
| Siphom, Xieng | 09000 |
| Thoum, Xieng | 09000 |
| Xang, Xieng | 09000 |