Boone County Fair
About this event
The Boone County Fair is an agricultural fair in Belvidere, Illinois, at Boone County Fair Grounds. The 2026 event takes place Aug 11–16, 2026. It holds a 4.5-star rating from 1,295 Google reviews.
Location & directions
Boone County Fair Grounds, Belvidere, IL
(815) 544-2900
Frequently asked questions
When is Boone County Fair 2026?
Boone County Fair takes place Aug 11–16, 2026 in Belvidere, Illinois.
Where is Boone County Fair held?
Boone County Fair is held in Belvidere, Illinois, at Boone County Fair Grounds, Belvidere, IL.
What is Boone County Fair?
An agricultural fair in Belvidere.
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