| Place |
Post Code |
| Bihumbe, Twumba |
None |
| Bivumu, Twumba |
None |
| Cyamaraba, Twumba |
None |
| Duhati, Twumba |
None |
| Gakuta, Twumba |
None |
| Gashiha, Twumba |
None |
| Gatema, Twumba |
None |
| Gisovu, Twumba |
None |
| Gitabura, Twumba |
None |
| Kaganda, Twumba |
None |
| Karambo, Twumba |
None |
| Karumbi, Twumba |
None |
| Kavumu, Twumba |
None |
| Kibumbwe, Twumba |
None |
| Murehe, Twumba |
None |
| Muronzi, Twumba |
None |
| Mwumba, Twumba |
None |
| Ngiga, Twumba |
None |
| Nyabubare, Twumba |
None |
| Nyakabingo, Twumba |
None |
| Nyakiyabo, Twumba |
None |
| Nyarubuye, Twumba |
None |
| Nyarutugara, Twumba |
None |
| Nyaruyaga, Twumba |
None |
| Nyirabununu, Twumba |
None |
| Rugeyo, Twumba |
None |
| All postal codes in Karongi |
| Bwishyura, Karongi |
| Gashari, Karongi |
| Gishyita, Karongi |
| Gitesi, Karongi |
| Mubuga, Karongi |
| Murambi, Karongi |
| Murundi, Karongi |
| Mutuntu, Karongi |
| Rubengera, Karongi |
| Rugabano, Karongi |
| Ruganda, Karongi |
| Rwankuba, Karongi |
| Twumba, Karongi |