Loudoun County | |
|---|---|
 Loudoun County Courthouse and a World War II monument (right) in Leesburg, February 2021 | |
 Flag  Seal | |
| Motto: "I Byde My Time"[1] | |
 Location within the U.S. state of Virginia | |
 Virginia's location within the U.S. | |
| Coordinates: 39°05′N 77°38′W / 39.09°N 77.64°W | |
| Country |  United States |
| State |  Virginia |
| Founded | 1757 |
| Named for | John Campbell, 4th Earl of Loudoun[2] |
| Seat | Leesburg |
| Largest town | Leesburg |
| Area | |
• Total | 521.33 sq mi (1,350.2 km2) |
| • Land | 515.74 sq mi (1,335.8 km2) |
| • Water | 5.6 sq mi (15 km2) 1.1% |
| Population (2020) | |
• Total | 420,959  |
| • Density | 810/sq mi (310/km2) |
| Time zone | UTC−5 (Eastern) |
| • Summer (DST) | UTC−4 (EDT) |
| Congressional district | 10th |
| Website | www |
Loudoun County (/ˈlaʊdən/) is in the northern part of the Commonwealth of Virginia in the United States. In 2020, the census returned a population of 420,959,[3] making it Virginia's third-most populous county. The county seat is Leesburg.[4] Loudoun County is part of the Washington–Arlington–Alexandria, DC–VA–MD–WV Metropolitan Statistical Area.
As of 2023, Loudoun County had a median household income of $156,821,[5] the highest of any county in the nation.[6]
- ^ Rosalind S. Helderman, Proud Past, Bright Future Rub Elbows in Today's Loudoun, Washington Post (April 21, 2005), page LZ03.
- ^ "About Loudoun - History". Loudoun County. Retrieved January 3, 2013.
- ^ "Population and Housing Unit Estimates". Retrieved March 26, 2020.
- ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
- ^ "USDA ERS - Download the Data". www.ers.usda.gov. Retrieved July 28, 2024.
- ^ "U.S. Census Bureau QuickFacts: Loudoun County, Virginia". www.census.gov.