ZIP Code 20855
Derwood, Maryland · Montgomery County
No8820
Zip20855
TypeSTANDARD
Decommissioned0
Primary CityDerwood
Acceptable CitiesRockville
Unacceptable Cities—
StateMD
LstateMaryland
CountyMontgomery County
TimezoneAmerica/New_York
Area Codes227, 240, 301
World RegionNA
CountryUS
Latitude39,13
Longitude-77,13