Humboldt, IL
ZIP Codes in Humboldt, Illinois
January 19, 2026
| ZIP Code | Population | Coordinates |
|---|---|---|
| 61931 | 1,336 | 39.5861, -88.3681 |
Humboldt has 1 ZIP code
ZIP Codes in Humboldt, Illinois
January 19, 2026
| ZIP Code | Population | Coordinates |
|---|---|---|
| 61931 | 1,336 | 39.5861, -88.3681 |