| Place | Post Code |
|---|---|
| Gbamaia, Nieni | None |
| Gbangbaia, Nieni | None |
| Gbangbanfira, Nieni | None |
| Gokoro, Nieni | None |
| Kaia, Nieni | None |
| Kalamaro, Nieni | None |
| Kamaro, Nieni | None |
| Kania, Nieni | None |
| Karandugu, Nieni | None |
| Keimadugu, Nieni | None |
| Kemasoko, Nieni | None |
| Kena, Nieni | None |
| Kilela, Nieni | None |
| Kindea, Nieni | None |
| Kombaia, Nieni | None |
| Komoia, Nieni | None |
| Kondembaia, Nieni | None |
| Kruto, Nieni | None |
| Kulanko, Nieni | None |
| Kulawulia, Nieni | None |
| Kulia, Nieni | None |
| Kulioia, Nieni | None |
| Kumala, Nieni | None |
| Kumuntambaia, Nieni | None |
| Kunia, Nieni | None |
| Laia, Nieni | None |
| All postal codes in Koinadugu | |
|---|---|
| Diang, Koinadugu | |
| Kasunko, Koinadugu | |
| Nieni, Koinadugu | |
| Wara-Wara Bafodea, Koinadugu | |
| Wara-Wara Yagala, Koinadugu | |