ZIP Code 18991 is located in the county of Bucks in the state of Pennsylvania. 18991 ZIP Code is spread between the coordinates of +40.21 Latitude and -75.07 Longitude. 18991 ZIP Code is part of the 215 area code. There are 0 postal offices in zip code 18991.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 18991. 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.