Winnebago County Fair 2024 Pecatonica Il Tickets. Experience the joy of the winnebago county fair in pecatonica, il! Buy now, decide what day to to join the fun later!

At the winnebago county fairgrounds, you’ll find over 108 acres of indoor and outdoor facilities to host music festivals, motor sports, auto & trade shows, conventions, antique markets,. May 17th & 18th and september 20th & 21st, 2025.