County Fair Guide

Washington County Fair

Potosi, Missouri

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2026 Dates

August 5–8, 2026

Duration

4 days

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Size

small

About Washington County Fair

The Washington County Fair in Potosi takes place in early August in the heart of Missouri's old iron-mining country in the southeastern Ozarks. Potosi is one of Missouri's oldest towns, and the fair reflects the deep sense of community that has sustained this rural county through generations of change.

What to Expect

Expect livestock shows, 4-H competitions, carnival rides, fair food, and local entertainment over four days in a county known for its scenic hills and historic mining heritage.

Visitor Tips

Washington County is home to Missouri's oldest courthouse still in use — explore Potosi's historic district and the nearby Elephant Rocks and Johnson's Shut-Ins state parks.

Places to Stay Nearby

Find hotels and vacation rentals close to Potosi.

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