Boone County Fair Belvidere Il. 2023 edition of boone county fair will be held at boone county fairgrounds, belvidere starting on 08th august. The first county fair in belvidere was held in 1855 in big thunder park.

2023 edition of boone county fair will be held at boone county fairgrounds, belvidere starting on 08th august. The listed events/dates are subject to change, due to varying circumstances.