| Place | Postal Code |
|---|---|
| Postal/ZIP Codes in Hatdeua, Keokou | 10000 |
| Postal/ZIP Codes in Hatxaingam, Keokou | 10000 |
| Postal/ZIP Codes in Keokhou, Keokou | 10000 |
| Postal/ZIP Codes in Khaamxang, Keokou | 10000 |
| Postal/ZIP Codes in Peub, Keokou | 10000 |
| Postal/ZIP Codes in Phonekham, Keokou | 10000 |
| Postal/ZIP Codes in Phonesavan, Keokou | 10000 |
| Postal/ZIP Codes in Xomdi, Keokou | 10000 |