Broad Run High School

Broad Run High School is a public secondary school in Ashburn, an unincorporated area in Loudoun County, Virginia, United States. Broad Run is part of the Loudoun County Public Schools (LCPS) system. It was ranked as the #8 Best Public High School in Loudoun County and #51 in Virginia by U.S. News in 2025.

In 1969, Loudoun County opened its third public high school amidst corn fields in Ashburn to accommodate the growing student populations resulting from new housing developments in the unincorporated communities in the eastern half of the county. Since then, the county population has increased more than twelvefold (most of it in the east), straining education budgets, infrastructure, and local politics. For Ashburn, this has resulted in constantly shifting attendance boundaries, as new schools are frequently being opened at all levels: elementary, middle, and high.

Broad Run initially served all of eastern Loudoun County's population; however, since the mid-1990s, its attendance area has steadily shrunk, as numerous new high schools have been built to accommodate the county's rapid population growth driven by the tech boom. While Loudoun County's population continues to grow, enrollment in LCPS peaked in 2019 and has since declined. As a result, new school construction has closed, with Lightridge High School (opened in 2020) being the most recent school to reduce Broad Run's attendance area, and no additional high schools scheduled to open in LCPS until 2028.

The area's student demographics have significantly changed as well: Loudoun County's residents are now the country's most affluent (per capita), and its ethnic composition continues to diversify as foreign immigration into Northern Virginia increases. Broad Run High School is also located in one of the most affluent zip codes in the country, with a recorded median income of exceeding $160,000 per household as of 2025.