Chantilly is a census-designated place (CDP) located in western Fairfax County of Northern Virginia. It is named after an early 19th-century mansion and farm. Chantilly is part of the Washington metropolitan area and is approximately 24 miles (39 km) from Washington, D.C. It is home to the Steven F. Udvar-Hazy Center annex of the National Air and Space Museum and the headquarters of the National Reconnaissance Office. It was also home to the annual Bilderberg summit in 2002, 2008 and 2012.
Chantilly was home to a number of colonial plantations in the 1700s, including “Sully,” built by Richard Bland Lee I, George Richard Lee Turberville’s “Leeton,” and the John Hutchison Farm. Chantilly plantation was built on Leeton property prior to the Civil War. Cornelia Lee Turberville, who was born at Leeton and was the daughter of George Richard Lee Turberville & Henrietta Lee of Leeton, was given a portion of Leeton in 1817 when she married her cousin Charles Calvert Stuart. She named her plantation after her grandfather’s plantation in Westmoreland County, VA – Richard Henry Lee – Signer of the Declaration of Independence. Chantilly plantation was burned down during the War by the Federal Troops in Feb 1863. The town retained the name of Chantilly.
The American Registry for Internet Numbers is headquartered in an unincorporated area by Washington Dulles International Airport, near Chantilly. At one time, Compass Airlines was headquartered near Chantilly, in an unincorporated area. The headquarters was relocated to Minnesota in late 2009. According to a 2007 estimate, the median income for a household in the CDP was $105,838, and the median income for a family was $126,290. Males had a median income of $61,954 versus $41,608 for females. The per capita income for the CDP was $36,200. About 1.3% of families and 2.3% of the population were below the poverty line, including 1.7% of those under age 18 and 5.5% of those age 65 or over.