The Genesee County Fair has been a huge part of the community for more than 175 years, making it one of Michigan’s longest-running traditions. When is the Genesee County Fair? This year’s Genesee County Fair runs August 24-30 at the fairgrounds on East Mt. Who’s Performing at the 2026 Genesee County Fair? Gallery Credit: Tony LaBrieGenesee County’s 20 All-Time Favorite Pizza Places After hundreds of comments, these are the pizza places Genesee County just can’t let go of.