The Washington County Fair is the place for Big Fair Big Fun, July 24 – August 2, 2026, at Westside Commons in Hillsboro. This annual fair includes amusement rides, live entertainment, food, livestock exhibits, and more.
Admission is always free. Attendees are encouraged to take the MAX light rail, as traffic and parking can be challenging. Parking is $10 per vehicle ($15 for oversized vehicles).