| Place | Postal Code |
|---|---|
| Hatdeua, Keokou | 10000 |
| Hatxaingam, Keokou | 10000 |
| Keokhou, Keokou | 10000 |
| Khaamxang, Keokou | 10000 |
| Peub, Keokou | 10000 |
| Phonekham, Keokou | 10000 |
| Phonesavan, Keokou | 10000 |
| Xomdi, Keokou | 10000 |
| Postal Codes in Keo Oudom | |
|---|---|
| Keokou, Keo Oudom | |
| Namgum, Keo Oudom | |
| Phongnaeng, Keo Oudom | |
| Thetsaban, Keo Oudom | |
| Viengkham, Keo Oudom | |