ZIP Code 18603 is located in the county of Columbia in the state of Pennsylvania. 18603 ZIP Code is spread between the coordinates of +41.0641756 Latitude and -76.24873285 Longitude. 18603 ZIP Code is part of the 570 area code. There are 0 postal offices in zip code 18603.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 18603. 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.