thumb|right|Aerial view of Beltsville, 1943
Beltsville is a census-designated place (CDP) in northern Prince George's County, Maryland, United States. The community was named for Truman Belt, a local landowner. The 2020 census counted 20,133 residents. Beltsville includes the unincorporated community of Vansville.
Geography
Beltsville is adjacent to the Montgomery County – Prince George's County line. It is approximately northeast of the Maryland border with Washington.
According to the United States Census Bureau, Beltsville has a total area of , of which is land and , or 0.38%, is water.
Climate
The climate in this area is characterized by hot, humid summers (up to 30.6°C or 87.1°F) and generally mild to cool winters (as low as -3.7°C or 25.3°F). According to the Köppen Climate Classification system, Beltsville has a humid subtropical climate, abbreviated "Cfa" on climate maps.