ZIP Code 20855 is located in the county of Montgomery in the state of Maryland. 20855 ZIP Code is spread between the coordinates of +39.1352989 Latitude and -77.14492584 Longitude. 20855 ZIP Code is part of the 240, 301 area code. There are 2 postal offices in zip code 20855.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 20855. 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.