ZIP Code 20628 is located in the county of St. Mary's in the state of Maryland. 20628 ZIP Code is spread between the coordinates of +38.1502107 Latitude and -76.35526767 Longitude. 20628 ZIP Code is part of the 240 area code. There is 1 postal office in zip code 20628.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 20628. 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.