ZIP Code 61101 – Rockford, Illinois
The 61101 ZIP Code belongs to Rockford, Illinois. The population in this 61101 ZIP code is 19,671. The latitude is 42.33727 and longitude is -89.14725 in 61101 Rockford, Illinois. The time zone for this 61101 ZIP code is America/Chicago.
| City | Rockford |
| Zip Code | 61101 |
| State | Illinois |
| County | Winnebago |
| Population | 19,671 |
| Latitude | 42.33727 |
| Longitude | -89.14725 |
| Time Zone | America/Chicago |