| Place | Postal Code |
|---|---|
| Chapong, Muangxuem | 07000 |
| Hatchai, Muangxuem | 07000 |
| Houaychok, Muangxuem | 07000 |
| Houaymor, Muangxuem | 07000 |
| Houaypain, Muangxuem | 07000 |
| Katon, Muangxuem | 07000 |
| Muangseum, Muangxuem | 07000 |
| Navanh, Muangxuem | 07000 |
| Phadaeng, Muangxuem | 07000 |
| Ponpouak, Muangxuem | 07000 |
| Santvan, Muangxuem | 07000 |
| Sobwaek, Muangxuem | 07000 |
| Tamo, Muangxuem | 07000 |