ZIP Code 54421 – Colby, Wisconsin
The 54421 ZIP Code belongs to Colby, Wisconsin. The population in this 54421 ZIP code is 3,724. The latitude is 44.89866 and longitude is -90.29532 in 54421 Colby, Wisconsin. The time zone for this 54421 ZIP code is America/Chicago.
| City | Colby |
| Zip Code | 54421 |
| State | Wisconsin |
| County | Marathon |
| Population | 3,724 |
| Latitude | 44.89866 |
| Longitude | -90.29532 |
| Time Zone | America/Chicago |