Gujba Local Government Area in Yobe State uses postal codes is 621101.
Here are the postal codes for the towns and districts in Gujba:
| Place/Area | Postal code |
| Bara | 621101 |
| Bokwai | 621101 |
| Borno-Kiji | 621101 |
| Bukul | 621101 |
| Bularaba | 621101 |
| Bulturam | 621101 |
| Bumsa | 621101 |
| Buni Gari | 621101 |
| Buni-Yadi | 621101 |
| Chandam | 621101 |
| Dadingel | 621101 |
| Dadma | 621101 |
| Dikshi | 621101 |
| Garinchina | 621101 |
| Gatumba | 621101 |
| Gazagana | 621101 |
| Gominja | 621101 |
| Goriri | 621101 |
| Gotala | 621101 |
| Gotumba | 621101 |
| Gujba | 621101 |
| Gulani | 621101 |
| Gutunia | 621101 |
| Kaduba | 621101 |
| Katarko | 621101 |
| Kolere Bomo | 621101 |
| Ligda | 621101 |
| Mafeni | 621101 |
| Maladuwari | 621101 |
| Mallam-Dunari | 621101 |
| Mandum | 621101 |
| Matal | 621101 |
| Ngeltawa | 621101 |
| Ngumal | 621101 |
| Ngurbuwa | 621101 |
| Njibulwa | 621101 |
| Shinda | 621101 |
| Taro | 621101 |
| Wagun | 621101 |
| Waranya | 621101 |