Area in fairfax county, where most people just smoke by fastfood joints for fun. about 50% are lower class, 40% middle class, and 10% upper upper manshion class. Chantilly is also known for having a pretty high std rate, with a 1:6 herpies rate. Sully Place and Greenbriar are the shopping centers in Chantilly where the MS-13, bloods, and southside gangsters jump eachother. Tilly is a pretty place to live but a terrible school to go to.