Beltsville is a census-designated place (CDP) in northern Prince George's County, Maryland, United States. The population was 16,772 at the 2010 census. Beltsville includes the unincorporated community of Vansville.
Beltsville is located at 39°2′15″N 76°55′4″W / 39.03750°N 76.91778°W / 39.03750; -76.91778 (39.037509, −76.917847), adjacent to the Montgomery County – Prince George's County line. It is about 7 miles (11 km) northeast of the Maryland border with Washington, D.C.
According to the United States Census Bureau, Beltsville has a total area of 7.2 square miles (18.6 km2), of which 7.1 square miles (18.5 km2) is land and 0.04 square miles (0.1 km2), or 0.38%, is water.