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

Zip code
62379
62326
62316
62330
62374
61450
62351
62313
62380
62334
62341
62373
62329
61420
62346
62321
62311
62336
62354
62349
62367
62358

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

Hancock 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 Hancock County County?

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

Do ZIP codes in Hancock 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.