ZIP Code 21704 is located in the county of Frederick in the state of Maryland. 21704 ZIP Code is spread between the coordinates of +39.3486309 Latitude and -77.35541331 Longitude. 21704 ZIP Code is part of the 301, 24 area code. There is 1 postal office in zip code 21704.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 21704. 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.