Lancaster, IL ZIP Codes

IMPORTANT NOTE:

The US Postal Service (USPS) recognizes just 1 community in Illinois named "Lancaster".
The USGS Geographic Name Information System (GNIS) recognizes 3 populated places in Illinois named "Lancaster".
The populated place recognized by the USPS is typically the largest & most prominent community with that name.

Links to ZIP Code profiles with maps.

Lancaster, IL 62855