Iroquois County, located in the state of Illinois, contains a range of ZIP codes that are essential for mail delivery, demographics, mapping, and regional planning. Below is a complete list of ZIP codes associated with this county.

These ZIP codes help identify specific areas and communities within the county, ranging from small towns and villages to broader rural stretches. Whether you’re moving to Iroquois County, setting up a business, or analyzing demographic trends, understanding ZIP code distribution is an essential part of the process.

Zip code
60912
60964
60928
60951
60931
60939
60927
60973
60974
60918
60956
60941
60970
60966
60968
60955
60924
60967
60911
60960
60938
60953
60945
60926
60930
60948
60942
60922

To know more about Iroquois County, click the button below:

Iroquois County Information

Use this tool to find your area details by using zip code.

ZIP Code to County

Note: Some ZIP codes may span across county borders and may be listed under more than one county. This is common in rural or low-population areas where ZIP code regions are broader.

Source: Data compiled from official county records, USPS ZIP code data, and the United States Census Bureau.

Frequently Asked Questions

How many ZIP codes are in Iroquois County County?

There are approximately 28 ZIP codes in this county. Check the table above for the complete list.

Do ZIP codes in Iroquois County overlap with other counties?

Yes, some ZIP codes may span more than one county. This is especially common in less populated or rural areas.