| Place | Post Code |
|---|---|
| Donexat, Phon-gnai | 16000 |
| Donlai, Phon-gnai | 16000 |
| Huaphek, Phon-gnai | 16000 |
| Huaydone, Phon-gnai | 16000 |
| Khanyaeng, Phon-gnai | 16000 |
| Kuay, Phon-gnai | 16000 |
| Nachaan, Phon-gnai | 16000 |
| Nasawaang, Phon-gnai | 16000 |
| Nasomboun, Phon-gnai | 16000 |
| Nawa, Phon-gnai | 16000 |
| Nonesang, Phon-gnai | 16000 |
| Nonesawang, Phon-gnai | 16000 |
| Nonestwan, Phon-gnai | 16000 |
| Nongbua, Phon-gnai | 16000 |
| Nonghoi, Phon-gnai | 16000 |
| Nongmek, Phon-gnai | 16000 |
| Nongsa, Phon-gnai | 16000 |
| Nongtaenoi, Phon-gnai | 16000 |
| Phailom, Phon-gnai | 16000 |
| Phonenoi, Phon-gnai | 16000 |
| Phoneyai, Phon-gnai | 16000 |
| Phoxai, Phon-gnai | 16000 |
| Salao, Phon-gnai | 16000 |
| Takhou, Phon-gnai | 16000 |
| Thaluang, Phon-gnai | 16000 |
| Thongkhoumouang, Phon-gnai | 16000 |
| All postal codes in Phonthong | |
|---|---|
| Donggnang, Phonthong | |
| Koutchik, Phonthong | |
| Nonkhoun, Phonthong | |
| Phon-gnai, Phonthong | |
| Phonthong, Phonthong | |