ZIP Code 21056
Gibson Island, Maryland · Anne Arundel County
No8906
Zip21056
TypePO BOX
Decommissioned0
Primary CityGibson Island
Acceptable Cities—
Unacceptable Cities—
StateMD
LstateMaryland
CountyAnne Arundel County
TimezoneAmerica/New_York
Area Codes410, 443, 667
World RegionNA
CountryUS
Latitude39,08
Longitude-76,44