ZIP Code 20620 is located in the county of St. Mary's in the state of Maryland. 20620 ZIP Code is spread between the coordinates of +38.2353118 Latitude and -76.52648366 Longitude. 20620 ZIP Code is part of the 301, 24 area code. There is 1 postal office in zip code 20620.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 20620. 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.