Ohio County Fair Dates 2025. Plan your summer fun with this local life's guide to ohio county fairs 2025. The ohio department of agriculture (oda) wednesday released the official dates for the 2025 fair season, which includes ohio’s 94 county and independent fairs.

The ohio department of agriculture released the official dates for the 2025 fair season, which includes ohio’s 94 county and independent fairs and the ohio state fair. 12 with the fairfield county fair.