Rockford, IL ZIP Codes, Area Codes and Address Format
Looking up ZIP codes or writing an address in Rockford, Illinois? Below is a practical reference built from postal data for the city.
- State
- Illinois (IL)
- County
- Winnebago County
- Standard ZIP codes
- 9
- Time zone
- Central
Rockford ZIP codes
These are the standard delivery ZIP codes for Rockford. The city has 14 ZIP codes in total when PO Box and unique codes are included.
- 61101
- 61102
- 61103
- 61104
- 61107
- 61108
- 61109
- 61112
- 61114
Area codes in Rockford
Rockford phone numbers use 779 and 815. With more than one code in use, residents on the same street can have different area codes.
Sample Rockford addresses
James Wilson
1320 Grove St
Rockford, IL 61107
Joseph Rodriguez
363 Main Rd Ste 36
Rockford, IL 61108
The street lines are invented; the city, state and ZIP codes are real. Use them for form testing, mockups and training materials, never for real orders.
How to write an address in Rockford
- End the address with ROCKFORD, IL and the five-digit ZIP code.
- Put apartment or suite numbers at the end of the street line.
- Use USPS abbreviations such as ST, AVE and BLVD.
- Match the ZIP code to the street. Rockford has 9 codes, so the city name alone is not enough.
More Illinois cities
Elgin, Springfield, Belleville, Bloomington, Aurora, or see all Illinois cities.
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