This year, there are some new things to see including four to five thousand animals at the barn and motorcycle races on the fair's final weekend.
Fair General Manager and CEO Norb Bartosik says the theme this year is, "The Fun Just Got Bigger."
BARTOSIK: "Instead of dinosaurs like last year, we have Big Bugs so those will not be another feature and then Rock You up at Expo Center and the two hundredth anniversary of the fair industry is on display at Expo Center building number four"
The fair's livestock nursery exhibit is also back with new procedures in place for staff after a pregnant cow got loose and was put down by a sheriff's deputy last year.