 Tag exhibits, demo derbies, truck and tractor pulls, harness racing, and mouth-watering fair food. You don't want to miss out on all the fun at the Clinton County Fair in Wilmington, July 6th through 13th. Contestants from across the U.S. will thrill you during the IFR Rodeo on Wednesday. And the exciting NTPA Truck and Tractor Pull is Saturday the 13th. Daily admission just $10 and includes parking, rides, and grandstand entertainment. The Clinton County Fair in Wilmington, July 6th through 13th. A tradition of food and fun since 1883.