The Marion County Iowa State University Extension and Outreach will hold a trunk or treat event at the Marion County Fairgrounds tonight. This is the 3rd annual trunk or treat event put on by Iowa State Extension at the fairgrounds. The event will be at Dyer Hudson Hall from 5:00-7:00 pm. The trunk of treat gives kids of all ages an opportunity to get an early jump on getting candy before Halloween night. The  trunk or treat event at the Marion County Fairgrounds in Knoxville is free and open to the public.