Boone County Fair

About

Boone County Fair in Belvidere is one of Illinois's largest county fairs, spanning 100 acres with livestock shows, home arts exhibits, vendors, and carnival attractions. The fair draws families and tourists looking for traditional county fair experience — a solid vendor opportunity in mid-August.

Details

Type

Fair

Season / Event Date(s)

Aug 11–16, 2026

Venue

Boone County Fairgrounds

Tags

• fair
• county
• annual
• multi-day
• livestock
• marquee