ZIP Code 21775 is located in the county of Frederick in the state of Maryland. 21775 ZIP Code is spread between the coordinates of +39.55 Latitude and -77.3 Longitude. 21775 ZIP Code is part of the 240 area code. There are 0 postal offices in zip code 21775.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 21775. 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.