Monster Mash Monterey Park

Monterey Park's Monster Mash is a free community Halloween afternoon at Barnes Park Field with games, giveaways, food trucks and family activities organized by the city. The city's official event page lists the 2026 Monster Mash for October 15 from 4 to 7 p.m. The event is structured as a casual, drop-in community celebration instead of a ticketed scare attraction. Food purchases are separate from free admission, and the lineup of activities can change. Families should review the city page for parking, weather and any costume-contest or registration updates before attending. Dates: Oct 15, 2026. Hours: 4–7 p.m.. Location: Barnes Park Field, 350 S McPherrin Ave, Monterey Park, CA. Admission: Free. Pop Up LA editorial scare level: 1/5. Confirm current availability and final terms on the official event page before travel or purchase.