| Place | Post Code |
|---|---|
| Lanakoro, Nieni | None |
| Magboko, Nieni | None |
| Mansiraia, Nieni | None |
| Masunku, Nieni | None |
| Momoria, Nieni | None |
| Nyandankolia, Nieni | None |
| Petifu, Nieni | None |
| Porebalia, Nieni | None |
| Royema, Nieni | None |
| Safinia, Nieni | None |
| Sakura, Nieni | None |
| Samaia, Nieni | None |
| Sawuria, Nieni | None |
| Sembehun, Nieni | None |
| Sereadu, Nieni | None |
| Sewaia, Nieni | None |
| Singbinia, Nieni | None |
| Soia, Nieni | None |
| Sokurela, Nieni | None |
| Sokurila, Nieni | None |
| Sumbaria, Nieni | None |
| Tilikoro, Nieni | None |
| Timbira, Nieni | None |
| Tonkoli, Nieni | None |
| Tunfuya, Nieni | None |
| Wankako, Nieni | None |
| All postal codes in Koinadugu | |
|---|---|
| Diang, Koinadugu | |
| Kasunko, Koinadugu | |
| Nieni, Koinadugu | |
| Wara-Wara Bafodea, Koinadugu | |
| Wara-Wara Yagala, Koinadugu | |