Chanchaga Local Government Area in Niger State uses the postal code 920101.
Here is the postal code for Chanchaga:
| Place/Area | Postal code |
| Babeji | 920101 |
| Bako | 920101 |
| Bako Pampe | 920101 |
| Debbi | 920101 |
| Ekpigi | 920101 |
| Etsu Musa | 920101 |
| G. Dutse | 920101 |
| Gwodworo | 920101 |
| Jamgaru | 920101 |
| Jigbeji | 920101 |
| K. Dajuwa | 920101 |
| Kampani | 920101 |
| Kangwa | 920101 |
| Kuka | 920101 |
| Kurumi | 920101 |
| Lapai | 920101 |
| Lashami | 920101 |
| Nagun | 920101 |
| Nkankutu | 920101 |
| Pette | 920101 |
| Popoi | 920101 |
| Shana | 920101 |
| Zakwogi | 920101 |