Yankwashi Local Government Area in Jigawa State uses postal codes is 705102.
Here are the postal codes for the towns and districts in Yankwashi:
| Place/Area | Postal code |
| Achilafia | 705102 |
| Zungumba | 705102 |
| Ba Auzini | 705102 |
| Badaza | 705102 |
| Belas | 705102 |
| Daba | 705102 |
| Dan Dutse | 705102 |
| Dandi | 705102 |
| Gezoj | 705102 |
| Gwarta | 705102 |
| Kafin Chiroma | 705102 |
| Karkarna | 705102 |
| Kwarin Kalgo | 705102 |
| Rauda | 705102 |
| Ringim | 705102 |
| Tsedau | 705102 |
| Yankwashi | 705102 |