County Fair Guide

Western Idaho Fair

Boise, Idaho

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2026 Dates

August 21–30, 2026

Duration

10 days

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Size

medium

Visitor Tips

The fairgrounds are in the heart of Boise's west-side neighborhoods — public transit and rideshare are convenient options to avoid parking congestion during the busy final weekend.

What to Expect

Visitors will find livestock shows, 4-H and open-class competitions, a full carnival midway, live music and grandstand entertainment, local food vendors, commercial exhibits, and the vibrant energy of a regional fair serving Idaho's most populous county.

About Western Idaho Fair

The Western Idaho Fair in Boise is the Treasure Valley's largest fair and one of Idaho's most attended summer events, drawing visitors from across the Boise metropolitan area and beyond to a ten-day celebration of agriculture, entertainment, and community at the end of August. Set in Idaho's capital and largest city, the fair bridges urban Boise with the farming heritage of Ada County and the surrounding Treasure Valley.

Heading to Western Idaho Fair?

Our complete packing list covers what actually makes a difference — sun protection, footwear, and the small things people forget until they need them.

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