24/7 Trauma and Biohazard Cleanup in Aldie, VA

Aldie is an unincorporated village and census-designated place in Loudoun County, Virginia, sitting on the John Mosby Highway (U.S. Route 50) between Chantilly and Middleburg.

The village occupies a gap between the Catoctin Mountains and the Bull Run Mountains through which the Little River flows, and it traditionally serves as the gateway to the Loudoun Valley.

Aldie was founded in 1810 by lawyer and legislator Charles Fenton Mercer, who named it for Aldie Castle in Perthshire, Scotland, his family's ancestral home.

Aldie Mill, built between 1807 and 1809 by contractor William Cooke for Mercer and powered by the Little River, is Virginia's only known mill powered by tandem water wheels and is one of the best-preserved mills in the state.

Descendants of miller Captain John Moore operated Aldie Mill continuously for six generations after Mercer sold it in 1835, until the mill finally closed in 1971.

President James Monroe had his grain ground at Aldie Mill while living at his nearby Oak Hill estate, and the miller once loaned him five dollars.

In June 1863 the mill area saw the Battle of Aldie, the first of three cavalry battles at Aldie, Middleburg, and Upperville fought over four days during the Gettysburg Campaign, in which a young Captain George Armstrong Custer distinguished himself.

The Aldie Mill Historic District was added to the National Register of Historic Places on September 15, 1970, and the restored mill is now operated as Aldie Mill Historic Park by NOVA Parks, which acquired it in 2006.

The Aldie CDP, first drawn prior to the 2020 census, covers only the small historic village and recorded a population of just 70 people in 2020.

The much larger Aldie postal area (ZIP Code 20105) had a population of 11,420 in 2014, a 569 percent increase since 2000 that made it one of the fastest-growing suburbs in the Washington metropolitan area.