Rockford ZIP Codes

List of Zip Codes of Rockford

The following table lists ZIP Codes associated with Rockford, Illinois, based on ZIP Code Tabulation Area (ZCTA) data from the U.S. Census Bureau.

S.N.	Zip Code	Latitude	Longitude	County	Population	Density
1	61101	42.33727	-89.14725	Winnebago	19,671	182.9
2	61102	42.22995	-89.15632	Winnebago	16,620	188.1
3	61103	42.3453	-89.08271	Winnebago	23,238	549.2
4	61104	42.25186	-89.07911	Winnebago	17,584	1508.6
5	61107	42.28344	-89.00348	Winnebago	29,473	762.8
6	61108	42.25515	-89.00236	Winnebago	30,202	1068.2
7	61109	42.1924	-89.05392	Winnebago	26,714	267.8
8	61112	42.24193	-88.97523	Winnebago	116	56.7
9	61114	42.30854	-88.9892	Winnebago	15,026	712.4

About Rockford Illinois Zip Codes

The city of Rockford in Illinois (IL) is served by approximately 9 ZIP Codes. These codes cover residential neighborhoods, business districts, and surrounding localities that use the city name in their mailing address.

Based on ZIP-level population estimates, the combined population covered by these ZIP Codes is around 178,644 people. Population density can vary significantly from one ZIP Code to another, reflecting the mix of dense urban blocks, commercial corridors, and lower-density residential areas.

The ZIP Codes associated with Rockford fall within county jurisdictions such as Winnebago. Each county manages local services, land use, and administration for the areas corresponding to its ZIP Codes.

Most ZIP codes for Rockford, Illinois follow the America/Chicago time zone.

Rockford ZIP Codes

List of Zip Codes of Rockford

About Rockford Illinois Zip Codes

Illinois Cities ZIP Codes

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