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Loudoun County was established in 1757 from Fairfax County. The county is named for John Campbell, Fourth Earl of Loudoun and governor general of Virginia from 1756 to 1759. Western settlement began in the 1720s and 1730s with Quakers, Scots-Irish, Germans and others moving south from Pennsylvania and Maryland, and also by English and enslaved Africans moving upriver from Tidewater.
By the time of the American Revolution, Loudoun County was Virginia's most populous county. It was also rich in agriculture, and the county's contributions of grain to George Washington's Continental Army earned it the nickname "Breadbasket of the Revolution."
During the War of 1812, important Federal documents and government archives were evacuated from Washington and stored at Leesburg. Local tradition holds that these documents were stored at Rokeby House.
U.S. president James Monroe treated Oak Hill Plantation as a primary residence from 1823 until his death on July 4, 1831. The Loudoun County coat of arms and flag, granted by the English College of Arms, memorialize the special relationship between Britain and the United States that developed through his Monroe Doctrine.
Early in the American Civil War, the Battle of Ball's Bluff took place near Leesburg on October 21, 1861. Future jurist Oliver Wendell Holmes Jr. was critically wounded in that battle along the Potomac River. During the Gettysburg Campaign in June 1863, Confederate major general J.E.B. Stuart and Union cavalry clashed in the battles of Aldie, Middleburg, and Upperville. Confederate partisan John S. Mosby based his operations in Loudoun and adjoining Fauquier County (for a more in-depth account of the history of Loudoun County during the Civil War, see Loudoun County in the American Civil War).
During World War I, Loudoun County was a major breadbasket for supplying provisions to soldiers in Europe. Loudoun farmers implemented new agricultural innovations such as vaccination of livestock, seed inoculations and ensilage. The county experienced a boom in agricultural output, outputting an annual wheat output of 1.04 million bushels in 1917, the largest of any county in Virginia that year. 1.2 million units of home produce were produced at home, much of which went to training sites across the state such as Camp Lee. The Smith–Lever Act of 1914 established increased agricultural education in Virginia counties, increasing agricultural yields. After the war, a plaque was dedicated to the "30 glorious dead" from the county who died in the Great War. Five of the thirty died on the front, while the other twenty five died while in training or in other locations inside the United States.
In 1962, Washington Dulles International Airport was built in southeastern Loudoun County in Sterling. Since then, Loudoun County has experienced a high-tech boom and rapid growth. Accordingly, many have moved to eastern Loudoun and become residents of planned communities such as Sterling Park, Sugarland Run, Cascades, Ashburn Village, and Ashburn Farm, making that section a veritable part of the Washington suburbs. Others have moved to the county seat or to the small towns and rural communities of the Loudoun Valley.
Between 1952 and 2008, Loudoun was a Republican-leaning county. However, this has changed in recent years with Democrats winning Loudoun in all statewide campaigns after Republicans narrowly carried it in 2014. As of the 2023 elections, Democrats hold a 7 to 2 majority on the Board of Supervisors and a 6 to 3 majority on the School Board, but Republicans hold all five countywide elected constitutional offices (Clerk of the Circuit Court, Commissioner of the Revenue, Commonwealth's Attorney, Sheriff, and Treasurer). This makes Loudoun County a reliable state bellwether, having voted for every statewide presidential election winner since 1932.
The county's official motto, I Byde My Time, is borrowed from the coat of arms of the Earl of Loudoun. In the mid to late 20th century, as northerners gradually migrated to Southern suburbs, Loudoun County increasingly shifted to the Republican Party in supporting presidential candidates, and more local ones. Before the 2008 election of Barack Obama, county voters had not supported a Democratic president since Lyndon B. Johnson in 1964.
In recent years, the county's rapid growth in its eastern portion, settled by educated professionals working in or near Washington, D.C., has changed the demographics of the county, and the Democratic Party has become increasingly competitive. After giving Senator Barack Obama nearly 54% of its presidential vote in 2008, the county supported Republican Bob McDonnell in 2009, who received 61% of the gubernatorial vote. Voters also replaced two incumbent Democratic delegates, making Loudoun's state House delegation all Republican. In 2012 county voters again supported Obama, who took 51.5% of the vote, with Republican challenger Mitt Romney garnering 47%.
Democrats carried the county again in the 2016 presidential election, when Loudoun swung heavily towards Hillary Clinton, giving her 55.1% to Donald Trump's 38.2%. In 2020, Joe Biden won 61.5% to Trump's 36.5%. A year later, in the 2021 Virginia gubernatorial election, Democratic nominee and former Governor Terry McAuliffe won the county with 55.3% to now Republican Governor Glenn Youngkin's 44.2%. Loudoun was one of ten counties that was won by McAuliffe, though it was his smallest margin of victory in Northern Virginia.
Cemeteries
Official Web Site
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