Boone County Fair5JulyJoana Calendar Register Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML When: August 8, 2017 – August 13, 2017 all-day 2017-08-08T00:00:00+00:00 2017-08-14T00:00:00+00:00 Where: Boone County Fair Grounds 8791 IL-76 Belvidere, IL 61008 USA Cost: Free events Boone County Fair Schedule