| All postal codes in Gicumbi |
| Bukure, Gicumbi |
| Bwisige, Gicumbi |
| Byumba, Gicumbi |
| Cyumba, Gicumbi |
| Giti, Gicumbi |
| Kageyo, Gicumbi |
| Kaniga, Gicumbi |
| Manyagiro, Gicumbi |
| Miyove, Gicumbi |
| Mukarange, Gicumbi |
| Muko, Gicumbi |
| Mutete, Gicumbi |
| Nyamiyaga, Gicumbi |
| Nyankenke, Gicumbi |
| Rubaya, Gicumbi |
| Rukomo, Gicumbi |
| Rushaki, Gicumbi |
| Rutare, Gicumbi |
| Ruvune, Gicumbi |
| Rwamiko, Gicumbi |
| Shangasha, Gicumbi |