Kankia Local Government Area in Katsina State uses postal codes is 822101.
Here are the postal codes for the towns and districts in Kankia:
| Place/Area | Postal code |
| Sagawar Doka | 822101 |
| Sukuntuni | 822101 |
| Tafajomua | 822101 |
| Tafashiya | 822101 |
| Tsa | 822101 |
| Tudun-Wulli | 822101 |
| Dan Doro | 822101 |
| Nasarawa | 822101 |
| Daya | 822101 |
| Nasarawa Rimaye | 822101 |
| Duku-Duku | 822101 |
| Rimaye | 822101 |
| Fakuwa | 822101 |
| Galadima | 822101 |
| Gidan Mutum | 822101 |
| Gochi | 822101 |
| Gyaza | 822101 |
| Jauga | 822101 |
| Kafinsoli | 822101 |
| Kankiya | 822101 |
| Kanyen Maina | 822101 |
| Kuduru | 822101 |
| Machinjin | 822101 |
| Magajin Gari | 822101 |
| Magami | 822101 |