Ashburn is a census-designated place (CDP) in Loudoun County, Virginia. As of the 2010 United States Census, its population was 43,511. It is 30 miles (48 km) northwest of Washington, D.C. and part of the Washington metropolitan area.
70 percent of the world’s Internet traffic passes through Ashburn.
Ashburn is located at 39°02′37″N 077°29′15″W (39.0437192, −77.4874899) and its average elevation is 295 feet (90 m) above sea level. According to the 2010 United States Census, the CDP has a total area of 17.287 square miles (44.77 km2), of which 17.025 square miles (44.09 km2) is land and 0.262 square miles (0.68 km2) is water. Ashburn is located between Washington Dulles International Airport and Leesburg, the county seat of Loudoun County.