The 77th annual Lake County Fair opens this evening with a kick-off Blue Ribbon Dinner followed by opening ceremonies along with barrel racing. Friday there will be family events and the Lake County Idol Competition. Saturday includes the Annual Diaper Derby and Farm Auction, which kicks off with a buyer’s breakfast. There’s also the Demolition Derby Boat Races. Sunday is the Jaripeo, or Mexican Rodeo, and the awards ceremony. And of course, there are all the exhibits. Tickets for the fair and the carnival are available at the gate.