174th Mercer County Fair August 13 - August 19 Mercer County Fair 1001 W Market Street, Celina, OH, United States Full Schedule of Events will be released in June
Halloween Campout October 16 - October 18 Mercer County Fairgrounds 1001 W Market St, Celina, OH, United States To book a site for our annual Halloween Campout, visit https://mercercountyohiofair.com/camping/.
