ZIP Code 11721 is located in Suffolk county in the state of New York. 11721 ZIP Code is spread between the coordinates of +40.893197 Latitude and -073.370462 Longitude. 11721 ZIP Code is part of the 631 area code. There are 0 postal offices in zip code 11721 which we have listed below.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 11721. 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.