Canfield County Fair 2024 Results. Mahoning county agricultural hall of fame. For six days in late august/early september, they serve as the home for the canfield fair, the largest county fair in the state of ohio and one of the largest in the nation.

It’s ohio’s largest county fair, and for 178 years, it has been put on by the mahoning county agricultural society. Ohio’s largest county fair, the fairgrounds cover 350 acres with a wide variety of exhibits, rides, livestock, crafts and the best fair food you’ll ever eat!