Zip Code 20689 is located in Sunderland, Calvert county in the state of Maryland. 20689 Zip Code is spread between the coordinates of +38.556448 Latitude and -076.541436 Longitude. 20689 Zip Code is part of the 410 area code. There is 1 postal office in zip code 20689 which we have listed below
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 20689. 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.