Quantico is a town in Prince William County, Virginia, United States. The population was 480 at the 2010 census.
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Virginia, a southeastern U.S. state, stretches from the Chesapeake Bay to the Appalachian Mountains, with a long Atlantic coastline. It's one of the 13 original colonies, with historic landmarks including Monticello, founding father Thomas Jefferson’s iconic Charlottesville plantation. The Jamestown Settlement and Colonial Williamsburg are living-history museums reenacting Colonial and Revolutionary-era life.
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The U.S. is a country of 50 states covering a vast swath of North America, with Alaska in the northwest and Hawaii extending the nation?s presence into the Pacific Ocean. Major Atlantic Coast cities are New York, a global finance and culture center, and capital Washington, DC. Midwestern metropolis Chicago is known for influential architecture and on the west coast, Los Angeles' Hollywood is famed for filmmaking.

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