A popular annual Halloween celebration in Old Town Monrovia and Library Park.
Sat, 31 Oct 2026
3:00 PM – 6:00 PM (America/Los_Angeles)
Library Park Monrovia , California
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The Halloween Spooktacular & Trick-or-Treat Bash is a beloved annual tradition in Monrovia, bringing the community together for an afternoon of festive fun. Held in Old Town Monrovia and Library Park, the event features trick-or-treating, activities, and a vibrant atmosphere perfect for families. Participants are encouraged to dress in their best costumes and enjoy the holiday spirit in a safe, community-focused environment. It is a highlight of the local calendar for residents of all ages.
What to Expect
A lively, family-oriented Halloween celebration.
Who Should Attend
Families
Children
Local residents
Costume enthusiasts
Agenda Overview
Afternoon of Halloween festivities.
Venue & Address
Library Park
321 S Myrtle Ave Monrovia , California – 91016 United States
Organizer
City of Monrovia · Government
The municipal government of Monrovia, California.
Frequently Asked Questions
When is it?
October 31st, 3:00 to 6:00 p.m.
Where is it held?
Old Town Monrovia and Library Park.
Is it free?
Yes, it is a community event.
Should I wear a costume?
Yes, costumes are encouraged.
Who hosts this?
City of Monrovia.
Is it for all ages?
Yes, it is family-friendly.
Tags
Halloween
festival
Monrovia
family
community
trick-or-treat
Summary
Annual Halloween festival and trick-or-treat event.