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

Zip code
60152
60553
60112
60552
60548
61068
60178
60531
60111
60115
61052
60511
60119
60145
60530
60556
60550
60520
60135
60146
60150
60518
60140
60151
60129

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

Dekalb 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 Dekalb County County?

There are approximately 25 ZIP codes in this county. Check the table above for the complete list.

Do ZIP codes in Dekalb 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.