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Fairfax County, Virginia
Fairfax County is the largest jurisdiction in Virginia and the core of the Northern Virginia office and technology market, with Tysons, Reston and the Dulles corridor carrying high-rise office and mixed-use density around Metro's Silver Line and a tenant base of federal agencies, defense and IT contractors and firms such as Capital One headquartered in Tysons. Note that the county seat, the City of Fairfax, is an independent city outside county jurisdiction, and that development is shaped less by land supply than by entitlement, proffers, transit-oriented comprehensive plan amendments and the county's ongoing push to convert obsolete suburban office to residential.
Open the live Fairfax County map →
Fairfax County at a glance
- 1,167,873Population (2025)
- FairfaxCounty seat
- 391 sq miLand area
- 2,987 / sq miDensity
- $150,113Median household income
- $699,700Median home value
What the live Fairfax County map shows
Free in your browser, nothing to download:
- City Boundaries: 3
- School Boundaries: 1
- Zoning: 76
- HUD: 77
- Soils: 215
- Wetlands: 7
Cities and towns in Fairfax County
Clifton, Herndon, Vienna.
Neighboring counties
- Falls Church City, VA · map
- Manassas Park City, VA · map
- Arlington County, VA · map
- Alexandria City, VA · map
- Manassas City, VA · map
- Prince William County, VA · map
- Loudoun County, VA · map