2026 Contra Costa County Fair
*The event has already taken place on this date: Sun, 05/17/2026
It is our tradition of bringing the entire community together with unforgettable local experiences for the past Century! Our story begins in January of 1859, when local agriculturists and community leaders organized the Contra Costa County Agricultural, Historical & Mechanical Society, establishing the county's first county fair in October 11, 1859! Nearly 80 years later, in 1937 the 23rd District Agricultural Association assumed responsibility of this great undertaking, bringing us to today, nearly 90 years later and we're going stronger than ever!
Please help us keep this calendar up to date! If this activity is sold out, canceled, or otherwise needs alteration, email mindy@kidsoutandabout.com so we can update it immediately. If you have a question about the activity itself, please contact the organization administrator listed below.
Location:
Contra Costa County Fair, West 10th Street, Antioch, CA, USA
See map: Google Maps
*Times, dates, and prices of any activity posted to our calendars are subject to change. Please be sure to click through directly to the organization’s website to verify.
The event has already taken place on this date:
05/17/2026
Time:
12:00pm
Ages
All Ages Adults & kids together Adults without kidsWeb Service