 The local zip code mailing address of "Greater Upper Marlboro", however, covers of territory and includes additional areas west and south of the red area, extending from the Capital Beltway (Largo, Westphalia, and New Orchard areas) on the west to the Patuxent River/county line on the east, and far southward into the rural Croom and Nottingham, Naylor, and Rosaryville areas (greatly below the map's red area).Residents of the former census-designated place are zoned to schools in the Prince George's County Public Schools district.Elementary schools serving the former CDP