| Place | Post Code |
|---|---|
| Donkhoun, Sopchaek | 06000 |
| Hatpha Ot, Sopchaek | 06000 |
| Hatxam, Sopchaek | 06000 |
| Huasaking, Sopchaek | 06000 |
| Huaychae, Sopchaek | 06000 |
| Huaylor, Sopchaek | 06000 |
| Huaypho, Sopchaek | 06000 |
| Huaythone, Sopchaek | 06000 |
| Kew, Sopchaek | 06000 |
| Napho, Sopchaek | 06000 |
| Phanoi, Sopchaek | 06000 |
| Phonesa At, Sopchaek | 06000 |
| Sankang, Sopchaek | 06000 |
| Sobchaek, Sopchaek | 06000 |
| Vangngeun, Sopchaek | 06000 |