Dandume Local Government Area in Katsina State uses postal codes is 830103.
Here are the postal codes for the towns and districts in Dandume:
| Place/Area | Postal Code |
| Dan Soda | 830103 |
| Dandume | 830103 |
| Dantakari | 830103 |
| Ilalla | 830103 |
| Jiruwa | 830103 |
| Magaji-Wando | 830103 |
| Mahuta | 830103 |
| Mai Kwama | 830103 |
| Nasarawa | 830103 |
| Tumbarkai | 830103 |
| Unguwar Gamba | 830103 |
| Unguwar Malamja | 830103 |