
metropolitan area, is usually included atop or near the top of lists of the wealthiest areas in the United States. Fairfax County, as part of the Washington, D.C.

county to reach a six-figure median household income and has the third- highest median household income of any county-level local jurisdiction in the U.S. The county seat is Fairfax, although because it is an independent city under Virginia law, the city of Fairfax is not part of Fairfax County. The county is also the most populous jurisdiction in the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area, with around 20% of the MSA population, as well as the larger Washington-Baltimore-Arlington, DC-MD-VA-WV-PA Combined Statistical Area, with around 13% of the CSA population.

The county is predominantly suburban in character with some urban and rural pockets.Īs of the 2020 census, the population was 1,150,309, making it Virginia's most populous jurisdiction, with around 13% of the Commonwealth's population. It is part of Northern Virginia and borders both the city of Alexandria and Arlington County and forms part of the suburban ring of Washington, D.C.
