| Place | Postal Code |
|---|---|
| Artémis, Ouango | None |
| Baoungou, Ouango | None |
| Basse-Kotto, Ouango | None |
| Bozégui, Ouango | None |
| Dékolo, Ouango | None |
| Falanzé, Ouango | None |
| Gaige, Ouango | None |
| Gbakouma, Ouango | None |
| Gbiato, Ouango | None |
| Gbongo, Ouango | None |
| Gnilo, Ouango | None |
| Gomba, Ouango | None |
| Gozobangui, Ouango | None |
| Inzia, Ouango | None |
| Kengougba, Ouango | None |
| Kpignon, Ouango | None |
| Kpokpo, Ouango | None |
| Loungougba, Ouango | None |
| Magamba, Ouango | None |
| Malagamba, Ouango | None |
| Mbambalé, Ouango | None |
| Mbatoka, Ouango | None |
| Moléba, Ouango | None |
| Ndogba, Ouango | None |
| Ngalakpa, Ouango | None |
| Ouango, Ouango | None |
| Postal Codes in Ouango | |
|---|---|
| Ngbandinga, Ouango | |
| Ouango, Ouango | |