Mercer County, OH Events Event Categories Beauty Pageants Festivals Independence Day Music Shows Other Events Regattas Sports Mercer County Event OutlookJune 28, 2024 Freedom Days - Celina Little Miss & Mr Lake Festival Pageant - CelinaJuly 5, 2024 Celina Lake Festival - CelinaAugust 3, 2024 Governor's Cup Regatta - Celina View our full calendar of events