County Fair Guide

Derry Township Agricultural Fair

Derry, Pennsylvania

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2026 Dates

July 12–18, 2026

Duration

7 days

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Size

small

What to Know

The Derry Township Agricultural Fair is a week-long July fair in the Chestnut Ridge country of Westmoreland County, celebrating the agricultural heritage of the rolling farmland between the Laurel Highlands and the Allegheny River valley.

Before You Go

Derry sits in the Westmoreland County farmland near the Laurel Highlands — Fallingwater and Kentuck Knob (Frank Lloyd Wright houses), Idlewild Park, and Linn Run State Park are all within easy reach.

On the Midway

The fair features livestock shows, 4-H and FFA competitions, carnival rides, local food vendors, and a community fair atmosphere in the heart of southwestern Pennsylvania's farm country.

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