ZIP Code 20646 is located in the county of Charles in the state of Maryland. 20646 ZIP Code is spread between the coordinates of +38.5253160 Latitude and -76.97422313 Longitude. 20646 ZIP Code is part of the 240, 301 area code. There are 2 postal offices in zip code 20646.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 20646. 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.