Dutsin-Ma Local Government Area in Katsina State uses postal codes is 821101.
Here are the postal codes for the towns and districts in Dutsin-Ma:
| Place/Area | Postal Code |
| Bagagadi | 821101 |
| Rayi-Faguwa | 821101 |
| Dabawa | 821101 |
| Sabon Garin Turare | 821101 |
| Dagelawai | 821101 |
| Salihawa | 821101 |
| Dan Ali | 821101 |
| Sawawa-Dogon Ruwa | 821101 |
| Dorawa | 821101 |
| Shema | 821101 |
| Dutsi-Ma | 821101 |
| Shema-Hayin Gada | 821101 |
| Kagara | 821101 |
| Tashar Bara’u | 821101 |
| Karofi | 821101 |
| Yan Shantuna | 821101 |
| Katanga | 821101 |
| Kufan Aggo | 821101 |
| Kuki | 821101 |
| Kutawa | 821101 |
| Kutawa-Badole | 821101 |
| Mahuta-Sabon Garin -Safana | 821101 |
| Makera | 821101 |
| Nasarawa – Gizawa | 821101 |