County Fair Guide

Prince William County Fair

Manassas, Virginia

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2026 Dates

August 7–15, 2026

Duration

9 days

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Size

large

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Founded

Since 1949

What Sets It Apart

Described by local press as Virginia's largest county fair, the Prince William County Fair has run since 1949 at the county fairgrounds near Manassas. The nine-day August event draws over 60,000 visitors annually from across Northern Virginia and the D.C. metro, with a full carnival midway, rodeo, demolition derby, and 4-H livestock program.

Source: Prince William Living

Planning Your Visit

Manassas is home to two major Civil War battlefields — Bull Run/First and Second Manassas — and the historic downtown Old Town Manassas; Occoquan Regional Park and the Shenandoah Valley are also within easy reach.

Fair Highlights

Expect major livestock and equine shows, 4-H and FFA competitions, carnival rides, live entertainment, demolition derby, and a full fair midway serving Northern Virginia's suburban and rural communities alike.

A Closer Look

Held annually in Manassas, the Prince William County Fair is one of Northern Virginia's largest county fairs, a nine-day August celebration drawing visitors from the rapidly growing communities of one of Virginia's most dynamic and historically rich counties. It's gathered Virginia communities together since 1949.

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