| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Buamdao, Pha-aen | 09000 |
| Postal/ZIP Codes in Khorkmou, Pha-aen | 09000 |
| Postal/ZIP Codes in Pha-Aen, Pha-aen | 09000 |
| Postal/ZIP Codes in Pha-Or, Pha-aen | 09000 |
| Postal/ZIP Codes in Phangngorn, Pha-aen | 09000 |
| Postal/ZIP Codes in Phawai, Pha-aen | 09000 |
| Postal/ZIP Codes in Phouthong, Pha-aen | 09000 |