McHenry County Fair
Updated 2026-10 · Crystal Lake Insights
About This Event
Week-long county fair with livestock shows, carnival rides, demolition derby, live music, food vendors, and 4-H exhibits. A McHenry County tradition since 1949.
When & Where
- 🗓️ Schedule: First week of August (annually)
- 📍 Location: McHenry County Fairgrounds, Woodstock · Woodstock, IL
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