| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Longkhaen, Phongnaeng | 10000 |
| Postal/ZIP Codes in Nainayaeng, Phongnaeng | 10000 |
| Postal/ZIP Codes in Phonephaeng, Phongnaeng | 10000 |
| Postal/ZIP Codes in Phoneyaeng, Phongnaeng | 10000 |
| Postal/ZIP Codes in Thaxan, Phongnaeng | 10000 |