Ganjuwa Local Government Area in Bauchi State uses postal codes is 742104.
Here are the postal codes for the towns and districts in Ganjuwa:
Ganjuwa LGA
| Location | Postcode |
| Gurzumo | 742104 |
| Siri | 742104 |
| Janu | 742104 |
| Siri Zuruuhu | 742104 |
| Jimbinb | 742104 |
| Tafawa | 742104 |
| Kafin Luman | 742104 |
| Unguwan | 742104 |
| Kafin Madaki | 742104 |
| Yali | 742104 |
| Kariya | 742104 |
| Kasuwa | 742104 |
| Kawu | 742104 |
| Kubi | 742104 |
| Kumin | 742104 |
| Kuna | 742104 |
| Lafiya | 742104 |
| Gasina | 742104 |
| Lago to Gabas | 742104 |
| Gingim | 742104 |
| Lubu | 742104 |
| Guadrsa | 742104 |
| Miya | 742104 |
| Gungura | 742104 |
| Nassarawa | 742104 |
| Baben Kasa | 742104 |
| Badaromo | 742104 |
| Barkaya | 742104 |
| Dagale | 742104 |
| Deno | 742104 |
| Digawa | 742104 |
| Dugumi | 742104 |
| Durm | 742104 |
| Gaboin Danfulani | 742104 |
| Gala | 742104 |
| Gali | 742104 |
| Ganjuwa | 742104 |