Beltsville is a census-designated place (CDP) in northern Prince George's County, Maryland, United States. The population was 15,691 at the 2000 census. Beltsville includes the unincorporated community of Vansville.
Beltsville is located at 39°2′15″N 76°55′4″W / 39.0375°N 76.91778°W / 39.0375; -76.91778 (39.037509, -76.917847), adjacent to the Montgomery County – Prince George's County line. It is about 7 miles northeast of the Maryland border with Washington, D.C.
According to the United States Census Bureau, Beltsville has a total area of 6.6 square miles (17.2 km²), all of it land.