Fairfax County, Virginia

county in Virginia, United States
Flag of Fairfax County, Virginia.svg
Seal of Fairfax County, Virginia.svg
Coat of arms of Fairfax County, Virginia.svg

Fairfax County is a county in the U.S. state of Virginia. In the year 2010, 1,081,726 people lived in this county. The county seat is Fairfax.