ZIP Code 21918
Conowingo, Maryland · Cecil County
No9260
Zip21918
TypeSTANDARD
Decommissioned0
Primary CityConowingo
Acceptable Cities—
Unacceptable Cities—
StateMD
LstateMaryland
CountyCecil County
TimezoneAmerica/New_York
Area Codes223, 410, 443, 667, 717
World RegionNA
CountryUS
Latitude39,68
Longitude-76,16