Marin County Fair 2026
July 1, 2026 - 11:00 am to 11:00 pm
Marin County Fairgrounds
10 Avenue of the Flags
off Highway 101
San Rafael, CA 94901
Who's ready for the fair?! The 2026 Marin County Fair opens on Wednesday, July 1 and runs through Sunday, July 5, at the Marin County Fairgrounds in San Rafael, near the Marin Civic Center. This year's Marin County Fair theme is Stars, Stripes & Stories which celebrates America’s 250th anniversary.