ZIP Code 20851
Rockville, Maryland · Montgomery County
No8816
Zip20851
TypeSTANDARD
Decommissioned0
Primary CityRockville
Acceptable Cities—
Unacceptable Cities—
StateMD
LstateMaryland
CountyMontgomery County
TimezoneAmerica/New_York
Area Codes227, 240, 301
World RegionNA
CountryUS
Latitude39,08
Longitude-77,12