| All postal codes in Buyengero |
| Banda, Buyengero |
| Gasebeyi, Buyengero |
| Gitsinda, Buyengero |
| Kanyinya, Buyengero |
| Karambi, Buyengero |
| Kinama, Buyengero |
| Kirama, Buyengero |
| Mabanza, Buyengero |
| Mudende, Buyengero |
| Mujigo, Buyengero |
| Nkizi, Buyengero |
| Nyakabuko, Buyengero |
| Nyamurenga, Buyengero |
| Rubirizi, Buyengero |
| Runyinya, Buyengero |
| Sebeyi, Buyengero |