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Loudoun County, Virginia
Loudoun is the data center capital of the world, with Ashburn's Data Center Alley, Dulles International Airport, and the Route 7, Route 28 and Dulles Greenway corridors driving the most valuable nonresidential tax base in Virginia, now extended by Silver Line Metro stations at Ashburn and Loudoun Gateway. Development is constrained less by demand than by electric transmission capacity and substation queues, and by the county's Rural Policy Area west of Route 15, where large-lot zoning and the Transition Policy Area hold back the suburban edge.
Open the live Loudoun County map →
Loudoun County at a glance
- 449,749Population (2025)
- LeesburgCounty seat
- 516 sq miLand area
- 872 / sq miDensity
- $178,707Median household income
- $701,000Median home value
What the live Loudoun County map shows
Free in your browser, nothing to download:
- City Boundaries: 7
- School Boundaries: 1
- HUD: 29
- Soils: 170
- Wetlands: 5
- Development News: 1
Cities and towns in Loudoun County
Hamilton, Hillsboro, Leesburg, Lovettsville, Middleburg, Purcellville, Round Hill.
Neighboring counties
- Clarke County, VA · map
- Fairfax County, VA · map
- Prince William County, VA · map
- Fauquier County, VA · map