ZIP Code 18011 is located in the county of Lehigh in the state of Pennsylvania. 18011 ZIP Code is spread between the coordinates of +40.5016748 Latitude and -75.61923918 Longitude. 18011 ZIP Code is part of the area code. There is 1 postal office in zip code 18011.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 18011. Always when you mail a package or a letter, be attentive to mention the preferred or acceptable cities. Using any city in the list of unacceptable cities may result in unforseen delays.