| Place | Post Code |
|---|---|
| Huaythong Neua, Thongsi | 06000 |
| Huaythongtai, Thongsi | 06000 |
| Phatheub, Thongsi | 06000 |
| Phiathongdi, Thongsi | 06000 |
| Thongsi, Thongsi | 06000 |
| All postal codes in Phothong | |
|---|---|
| Muanghup, Phothong | |
| Namlouang, Phothong | |
| Naxon, Phothong | |
| Phonthong, Phothong | |
| Thongsi, Phothong | |