ZIP Code 20775
Upper Marlboro, Maryland · Prince George's County
No8774
Zip20775
TypePO BOX
Decommissioned0
Primary CityUpper Marlboro
Acceptable CitiesUppr Marlboro
Unacceptable CitiesKettering
StateMD
LstateMaryland
CountyPrince George's County
TimezoneAmerica/New_York
Area Codes240
World RegionNA
CountryUS
Latitude38,81
Longitude-76,75