| Place | Postal Code |
|---|---|
| Baumphouk, Xiengmouak | 06000 |
| Houaymokpit, Xiengmouak | 06000 |
| Houaythong, Xiengmouak | 06000 |
| Khouathi 1, Xiengmouak | 06000 |
| Longlao Kao, Xiengmouak | 06000 |
| Longlao Mai, Xiengmouak | 06000 |
| Nongtok, Xiengmouak | 06000 |
| Panor, Xiengmouak | 06000 |
| Sath, Xiengmouak | 06000 |
| Xiengmouak, Xiengmouak | 06000 |