ZIP Code 21029
Clarksville, Maryland · Howard County
No8884
Zip21029
TypeSTANDARD
Decommissioned0
Primary CityClarksville
Acceptable Cities—
Unacceptable Cities—
StateMD
LstateMaryland
CountyHoward County
TimezoneAmerica/New_York
Area Codes227, 240, 301, 410, 443, 667
World RegionNA
CountryUS
Latitude39,2
Longitude-76,94