San Mateo County Fair
Dates
Jun 5–14, 2026
Countdown
Happening now
Location
San Mateo, California
Admission
Varies — see organizer
About this event
Bay Area county fair with agricultural displays, livestock, exhibits, carnival, entertainment, and family activities.
Annual early to mid-June
Location & directions
25th Ave & Delaware St, San Mateo, CA 94403
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