DuPage County Illinois is covered by a total of 59 ZIP Codes. There are 14 ZIP Codes in DuPage County that extend into adjacent counties (Cook County, Kane County, and Will County). Of the ZIP codes within or partially within DuPage County there are 42 Standard ZIP Codes, 9 Unique ZIP Codes and 8 PO Box ZIP Codes.
Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of DuPage County and can be turned on and off. Each type of postal code can also be turned on and off.