Zip Code 20678 is located in Prince Frederick, Calvert county in the state of Maryland. 20678 Zip Code is spread between the coordinates of +38.511282 Latitude and -076.528578 Longitude. 20678 Zip Code is part of the 410 area code. There are 2 postal offices in zip code 20678 which we have listed below
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 20678. 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.