An autumnal celebratory gathering held within the city limits of San Francisco, generally occurring on or near October 31st, characterized by costumes, themed decorations, and social interaction. These events can range from intimate house gatherings to large-scale public festivals.
Such festivities contribute significantly to the local economy, boosting revenue for venues, costume shops, and related businesses. The tradition provides opportunities for community engagement, creative expression through costuming, and the experience of shared cultural activities. Historically, these events have evolved from simple neighborhood gatherings to elaborate affairs attracting both residents and tourists.
