Bay Area Halloween Events 2026

Coverage adds a de Young after-hours party and YBCA artist-built haunt, reportedly with dates, prices, and age limits, plus family events and quieter SF trick-or-treat blocks; confirm venue listings and treat neighborhood claims cautiously. Lafayette’s free Trick or Treat Street is listed for Oct. 30, 4–6 p.m., pending official verification. Alameda’s WitchFest listing conflicts on Oct. 24 vs. Oct. 25; verify before sharing. Feinstein’s cabaret, Galactic at The Fillmore, and the reported Haight procession also need confirmation.