| Locality | Post Code |
|---|---|
| Vengue, Lébombi-Léyou | |
| Welle, Lébombi-Léyou | |
| Welle-Leboung, Lébombi-Léyou | |
| Youlou, Lébombi-Léyou |
| Haut-Ogooué Postal Codes | |
|---|---|
| Sébé-Brikolo | Plateaux |
| Ogooué-Létili | Mpassa |
| Lékoni-Lékori | Lékoko |
| Lékabi-Léwolo | Lébombi-Léyou |
| Djoué | Djouori-Agnili |
| Bayi-Brikolo | |