ZIP Code 21150
Simpsonville, Maryland · Howard County
No8950
Zip21150
TypePO BOX
Decommissioned0
Primary CitySimpsonville
Acceptable Cities—
Unacceptable Cities—
StateMD
LstateMaryland
CountyHoward County
TimezoneAmerica/New_York
Area Codes410
World RegionNA
CountryUS
Latitude39,18
Longitude-76,88