AdView homes in 3D with a 360° view & experience the future of home search. Tour homes now. Homes.com connects you to the listing agent, the person who knows the most about the home.
Upper Marlboro, officially the Town of Upper Marlboro, is the county seat of Prince George's County, Maryland, United States. As of the 2020 census, the population within the town limits was 652, although Greater Upper Marlboro, which covers a large area outside the town limits, is many times larger.