ZIP Code 21636 is located in the county of Caroline in the state of Maryland. 21636 ZIP Code is spread between the coordinates of +39.0262658 Latitude and -75.79542105 Longitude. 21636 ZIP Code is part of the 410 area code. There is 1 postal office in zip code 21636.
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 21636. 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.