County Fair Guide

Mercer County Fair

Aledo, Illinois

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2026 Dates

July 7–12, 2026

Duration

6 days

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Size

small

Highlights

Expect livestock judging, 4-H and FFA competitions, carnival rides, local food vendors, and the river-town agricultural community spirit of Mercer County.

Mercer County Fair Overview

Aledo is home to the Mercer County Fair, which is a six-day early-July celebration along the Mississippi River, serving the farming communities of Mercer County in the Illinois-Iowa borderland.

Good to Know

Aledo is the county seat of Mercer County on the bluffs above the Mississippi River — the county is known for its fertile river-bottom farmland and strong agricultural tradition.

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