| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Khanghai, Somboun | 09000 |
| Postal/ZIP Codes in Nakhue, Somboun | 09000 |
| Postal/ZIP Codes in Nammon, Somboun | 09000 |
| Postal/ZIP Codes in Namngam, Somboun | 09000 |
| Postal/ZIP Codes in Nong-On, Somboun | 09000 |
| Postal/ZIP Codes in Pha Neua, Somboun | 09000 |
| Postal/ZIP Codes in Pha Tai, Somboun | 09000 |
| Postal/ZIP Codes in Thoum, Somboun | 09000 |