The Marion County Fair begins this Saturday, July 31st and we have your full schedule breakdown so you don't miss a thing!. Thanks to the great people at showmepalmyra.com we have the full schedule for you to break down this years 2021 Marion County Fair. The general information you need to know is that the fair is from this Saturday, July 31st and goes through next Saturday, August 7th, the fair is completely free to enter for kids 6 and under, and only $1 for everyone else to enter. But if you want to enter the arena for the entertainment the cost varies depending on day, and event, anywhere from $5 to $20. ARM BAND days are Tuesday through Saturday, with times being 6pm to 10pm for $20 in advance or $25 day of. Here is the schedule according to showmepalmyra.com.