Chantilly, Virginia, is in western Fairfax County. It is approximately 24 miles from Washington, D.C., and is home to Dulles International Airport. It has about 23,000 residents in the Northern Virginia portion of the Washington metropolitan area and is about 25 miles west of Washington, D.C., via Interstate 66 and U.S. Route 50.
Virginia is in the Mid-Atlantic and Southeastern regions of the U.S., situated between the Atlantic Coast and the Appalachian Mountains. There are more than 8.65 million people, with over one-third living in the Baltimore-Washington metro area. Richmond is the capital city, yet Virginia Beach is the most populous. It spans 42,774.2 square miles, including about 3,180 square miles of water.