Lehigh County Pennsylvania is covered by a total of 40 ZIP Codes. There are 11 ZIP Codes in Lehigh County that extend into adjacent counties (Berks County, Bucks County, Carbon County, Montgomery County, and Northampton County). Of the ZIP codes within or partially within Lehigh County there are 30 Standard ZIP Codes, 3 Unique ZIP Codes and 7 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 Lehigh County and can be turned on and off. Each type of postal code can also be turned on and off.