Quantico is a town in Prince William County, Virginia, United States. The population was 480 at the 2010 census. Quantico is approximately 35 miles southwest of Washington, D.C., bordered by the Potomac River to the east and the Quantico Creek to the north. The word Quantico is a corruption of the name of a Doeg village recorded by English colonists as Pamacocack.
Potomac Avenue in downtown Quantico
Prince William County, Virginia
Prince William County lies beside the Potomac River in the U.S. state of Virginia. At the 2020 census, the population was 482,204, making it Virginia's second most populous county. The county seat is the independent city of Manassas.
The old county courthouse, built c. 1897 in March 2007
Prince William County Judicial Center
The National Museum of the Marine Corps in November 2010
The Manassas National Battlefield Park visitor center in July 2003