ZIP Code 21639
Greensboro, Maryland · Caroline County
No9092
Zip21639
TypeSTANDARD
Decommissioned0
Primary CityGreensboro
Acceptable Cities—
Unacceptable Cities—
StateMD
LstateMaryland
CountyCaroline County
TimezoneAmerica/New_York
Area Codes302, 410, 443, 667
World RegionNA
CountryUS
Latitude38,97
Longitude-75,8