Bladensburg is located at 38°56′29″N 76°55′48″W (38.941428, −76.930053).[14]
According to the United States Census Bureau, the town has a total area of 1.01 square miles (2.62 km2), of which 1.00 square mile (2.59 km2) is land and 0.01 square miles (0.03 km2) is water.[15]
The community is home to the "Bladensburg Waterfront Park" at the confluence of the Northeast Branch and Northwest Branch of the Anacostia River.[16]