ZIP Code 18001 is located in the county of Lehigh in the state of Pennsylvania. 18001 ZIP Code is spread between the coordinates of +40.66 Latitude and -75.55 Longitude. 18001 ZIP Code is part of the 484 area code. There are 0 postal offices in zip code 18001.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 18001. 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.