| Ort | Postleitzahl |
|---|---|
| Bugaragara, Byumba | None |
| Bugunga, Byumba | None |
| Buhambe, Byumba | None |
| Byumba, Byumba | None |
| Byumba Ville, Byumba | None |
| Gakenke, Byumba | None |
| Gasharu, Byumba | None |
| Gashirwe, Byumba | None |
| Gasiza, Byumba | None |
| Gitovu, Byumba | None |
| Kamitsinga, Byumba | None |
| Kamushenyi, Byumba | None |
| Kannyogo, Byumba | None |
| Kibali, Byumba | None |
| Kinihira, Byumba | None |
| Kivugiza, Byumba | None |
| Matyazo, Byumba | None |
| Miruku, Byumba | None |
| Mukeli, Byumba | None |
| Muliza, Byumba | None |
| Murama, Byumba | None |
| Mwendo, Byumba | None |
| Ngondore, Byumba | None |
| Nyakabungo, Byumba | None |
| Nyamabuye, Byumba | None |
| Nyande, Byumba | None |