The Williamson County Fair Car Show takes place Saturday, August 8, 2026, at the Williamson County Fairgrounds in Marion. Registration runs from 8:00 a.m. to 11:00 a.m., with judging beginning at noon. An awards ceremony follows at 2:00 p.m.
Entry fee is $10 per show car. The first 50 registered vehicles receive free dash plaques. A 50/50 raffle will be held during the event. Big Elvis provides DJ entertainment.
Participants are encouraged to bring classics, customs, and hot rods. The event is billed as fun for the whole family and takes place at the longest continuous running county fair in Illinois.
