County Fair Guide

Lewis and Clark County Fair

Helena, Montana

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2026 Dates

July 21–25, 2026

Duration

5 days

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Size

medium

About Lewis and Clark County Fair

The Lewis and Clark County Fair in Helena celebrates the Montana state capital county named for the Corps of Discovery — Helena arose from the Last Chance Gulch gold strike of 1864 and became one of the wealthiest cities per capita in America during the gilded age of copper and gold, and the county's agricultural communities in the Missouri River headwaters region come together at a fair near the state seat of government.

What to Expect

Expect livestock shows, 4-H and FFA competitions, local food vendors, carnival rides, live entertainment, and a well-organized fair drawing from the greater Helena metro area.

Visitor Tips

Helena's Capitol Building, the Original Governor's Mansion, and the historic Last Chance Gulch pedestrian mall define Montana's state capital. The Cathedral of Saint Helena — modeled on the Votive Church in Vienna — is one of Montana's most architecturally significant buildings. Mount Helena City Park offers hiking above the city.

Heading to Lewis and Clark County Fair?

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