Aug 18 – Aug 19, 2026
Prince William County Fair Horse Show
Multi-Discipline
Prince William County Fairgrounds is the largest county fairgrounds in Virginia, located in Manassas. It hosts the annual nine-day Prince William County Fair each summer, featuring livestock and 4-H exhibits, rodeo, home arts, a midway, and entertainment, along with year-round events including car shows, concerts, and craft fairs.