Mercer County Fair Mercer County Fair tickets available for all events. List View Calendar View < Prev 1 Next > Aug 15 Sat 7:30PM For King and Country Mercer County Fair Celina, OH Buy Aug 14 Sat 7:30PM Casting Crowns Mercer County Fair Celina, OH Buy < Prev 1 Next > Additional Venues Near Celina, OH Overdrive Entertainment Find Us on Facebook ATBS