Loudoun County Map
The County of Loudoun is located in the State of Virginia. Find directions to Loudoun County, browse local businesses, landmarks, get current traffic estimates, road conditions, and more. According to the 2020 US Census the Loudoun County population is estimated at 422,784 people. The Loudoun County time zone is Eastern Daylight Time which is 5 hours behind Coordinated Universal Time (UTC).
Nearby counties include Frederick County, Montgomery County, Washington County, Clarke County, Fairfax County, Fauquier County, Prince William County, Jefferson County.
Top cities include Waterford, Aldie, Bluemont, Paeonian Springs, Arcola