Canfield Fair Hours 2024 Delhi. It’s ohio’s largest county fair, and for 178 years, it has been put on by the mahoning county agricultural society. Event starts on friday, 30 august 2024 and happening at canfield fair grounds, canfield, oh.

By staff report mahoning matters. 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.