| Place | Post Code |
|---|---|
| Kaiba, Gaoual) | |
| Labha Ndiyan, Gaoual) | |
| Netere Centre, Gaoual) | |
| Poudoukou, Gaoual) | |
| Pouteteya, Gaoual) |
| Postal Codes in Koumbia | |
|---|---|
| Bessilé | |
| Bhoulli | |
| Dar Es Salam | |
| Dara Bowé | |
| Dombiadji | |
| Dow Saare | |
| Guidaly | |
| Kamele | |
| Kembera | |
| Koumbia 1 | |
| Koumbia 2 | |
| Madina Bowé | |
| Madina Diaka | |
| Madina Guiledji | |
| Ndiouriya | |
| Netere | |
| Pety | |
| Taguira | |