Marlton is an unincorporated area and census-designated place (CDP) in Prince George's County, Maryland, United States.

[3] The Marlton housing development, at first briefly called "Brandywine Country", grew up along U.S. Route 301 in the 1970s, and is part of the greater Upper Marlboro community.

[4] According to the United States Census Bureau, the CDP has a total area of 6.0 square miles (16 km2), all land.

Prince George's County Police Department District 5 Station in Clinton CDP serves the community.

[10] Marlton and Mattaponi elementary schools serve sections of the CDP.