ZIP Code 61101 – Rockford, Illinois | ZipsCode.us
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ZIP Code 61101
Rockford, Illinois · Winnebago
ZIP code 61101 belongs to the city of Rockford in Illinois (Winnebago). See all Illinois ZIP Codes.
ZIP code 61101 belongs to Rockford, Illinois, in Winnebago. If you are mailing a letter or package to this area, use Rockford, IL 61101 in the address. On this page you will find the city and county for 61101, nearby ZIP codes in the same county, and free tools to look up any address in this ZIP code.
What City Is ZIP Code 61101?
The city for ZIP code 61101 is Rockford, Illinois. When you write an address in this area, the correct format is: Name, Street Address, Rockford, IL 61101.
ZIP Code 61101 County and State
ZIP code 61101 is located in Winnebago, Illinois. For a complete list of cities and ZIP codes across the state, see the Illinois ZIP Codes page.
Nearby ZIP Codes in Winnebago
These ZIP codes are in the same county as 61101:
ZIP Code 61101 on the Map
The map below shows the approximate center of ZIP code 61101, near Rockford, Illinois. You can zoom in and drag the map to explore the area.
Map center is approximate (ZIP area center, around 42.2922, -89.1161). Map data © OpenStreetMap.
Population and Demographics of ZIP Code 61101
According to public U.S. Census Bureau data, ZIP code 61101 is home to a community in Illinois. The figures below come from the U.S. Census and the American Community Survey (ACS).
Source: U.S. Census Bureau, American Community Survey (ACS) 2023 5-year estimates and 2023 Gazetteer. Figures are estimates and change with each new survey.
Find an Address in ZIP Code 61101
Need the full ZIP+4 code for a specific street address in Rockford? Use the free ZIP+4 Lookup tool, or find any ZIP code from a street address with the ZIP Code by Address tool.
Frequently Asked Questions
What city is ZIP code 61101?
ZIP code 61101 is for Rockford, Illinois.
What county is ZIP code 61101 in?
ZIP code 61101 is in Winnebago, Illinois.
What state is ZIP code 61101 in?
ZIP code 61101 is in Illinois (IL).
How do I find the ZIP+4 for an address in 61101?
Use the free ZIP+4 Lookup tool with the full street address to get the complete 9-digit ZIP code.
What are the nearby ZIP codes to 61101?
Nearby ZIP codes include 61016 (Cherry Valley), 61024 (Durand), 61063 (Pecatonica), 61072 (Rockton), 61073 (Roscoe).
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