| Place | Post Code |
|---|---|
| Balemba, Koalla | None |
| Banidjoari, Koalla | None |
| Bonsiega, Koalla | None |
| Dassari, Koalla | None |
| Doyana, Koalla | None |
| Ganta, Koalla | None |
| Goundou, Koalla | None |
| Madori, Koalla | None |
| Mamanguel, Koalla | None |
| Mopienga, Koalla | None |
| Tambiri, Koalla | None |
| Tankori, Koalla | None |
| All postal codes in Gnagna | |
|---|---|
| Bilanga, Gnagna | |
| Bogandé, Gnagna | |
| Koalla, Gnagna | |
| Liptougou, Gnagna | |
| Mani, Gnagna | |
| Piéla, Gnagna | |
| Thion, Gnagna | |