Jefferson 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 Jefferson County, setting up a business, or analyzing demographic trends, understanding ZIP code distribution is an essential part of the process.

Zip code
62864
62872
62828
62810
62851
62894
62830
62801
62808
62889
62860
62816
62846
62836
62893
62814
62831
62853
62884
62898
62883
62877

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

Jefferson 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 Jefferson County County?

There are approximately 22 ZIP codes in this county. Check the table above for the complete list.

Do ZIP codes in Jefferson 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.