About ZIP code 61931
The ZIP code 61931 routes mail to Humboldt in the Illinois region of United States. Use it as the postal segment of any address in this area, and confirm unusual addresses with the local postal operator.
United States ยท ZIP code
61931 - Humboldt
ZIP code 61931 is Humboldt in Illinois, United States.
| ZIP code | 61931 |
| Place | Humboldt |
| Region | Illinois |
| District | Coles |
| Country | United States (US) |
| Coordinates | 39.6012, -88.3141 (map) |