Rockford zipcode
| City | Rockford |
| ZIP Code | 61109 |
| Type | Standard |
| State Code | IL |
| State | Illinois |
ZIP code of Rockford is 61109. This place is located in Illinois state in US. To send any postal service to Rockford, you must use 61109 zipcode.
You should avoid following 2 city names of Illinois to be used with the ZIP code 61109.
- Morristown, IL
- New Milford, IL