Oct20Tue
The Pumpkin Factory at Westminster Mall
A mall-lot pumpkin patch pop-up with rides, games and a petting zoo.
On set dates
58 events
Oct23Fri
Halloween Spooktacular (Westminster)
Candy-filled trunks, seasonal activities and an open-air movie at the Civic Center.
Oct23Fri
Westminster Halloween Spooktacular
Safe community trick-or-treating, carnival games and fall photo backdrops for the whole family.
Oct24Sat
Halloween Festival (Stanton)
Games, entertainment, costume contests and food trucks for all ages; no pre-registration.
Oct24Sat
Jack-o-Lantern Jamboree
A family Halloween party with an inflatable slide, a reptile booth, carnival games, face painting and glitter tattoos, a pumpkin patch and crafts. Registration is requ...
Oct24Sat
Boo Bash 2026
A Halloween party for all ages: trunk-or-treat, pumpkin decorating, costumes, dancing and prizes.
Oct24Sat
Halloween Carnival at Los Alamitos Race Course
Carnival games, a costume contest and live horse racing. Adults $3; kids under 18 free.
Oct31Sat
Trick or Treat on Main Street
Trick-or-treating at participating shops along Main Street.
Oct31Sat
HB Downtown Surf City Spooktacular
Main Street turns into a trick-or-treat route with a monster march, costume contest, character appearances and the Boo Wave, supporting Waymakers.
Oct24Sat
La Palma Halloween Carnival 2026
A safe, family-oriented alternative to trick-or-treating with carnival games, costume contests, treats and giveaways. No cost to attend.
Oct20Tue
Hana Field Pumpkin Patch
Pick pumpkins and flowers, wander the flower fields, try the Jurassic Fright corn maze and visit the barnyard. A stroller or wagon helps with the haul.
Oct20Tue
Seasonal Adventures Pumpkin Patch at the OC Fairgrounds
A fairgrounds pumpkin patch with inflatables, small rides, a petting zoo and a train, plus seasonal decor and a market for squash and gourds.
Oct24Sat
Boo Ha Ha: Zombie Homecoming
A zombie-themed Halloween event at the OC Fair & Event Center.
Oct24Sat
Halloweekend at The Crossing
A free, monster-mash-themed afternoon of candy and games for families.
Oct31Sat
OC Fairgrounds Nightmare Halloween Costume Party
An all-ages Halloween costume party with music, entertainment, food and lights.
Oct20Tue
Tunnel of Terror: OC Haunted Car Wash
A haunted car wash where performers and effects scare you as you drive through.
Oct21Wed
Boo-tastic Halloween Party at Adventure City
An evening Halloween party at the amusement park: a trick-or-treat street, a Halloween train, a scavenger hunt, a light show, a dance party and 11 rides, with free glo...
Oct24Sat
Anaheim Fall Festival & Halloween Parade
Downtown festival with kid and dog costume contests, then an evening parade of artist-built floats.
Oct25Sun
Anaheim Town Square Spooktacular Halloween Celebration
A Halloween event at the shopping center with performers, face painting, crafts, a magic show and trick-or-treating.
Oct25Sun
Halloween Treat Street at Anaheim Plaza
Free trick-or-treating around the center with photo spots, DJ music, raffle prizes and face painting; the first 100 costumed kids get goodie bags.
Oct29Thu
Nightmare on Center Street
Trick-or-treating at market booths decorated for Halloween, plus a themed village of costumed vendors.
Oct31Sat
Halloween Spooktacular at Anaheim Hills Festival
Trick-or-treating at participating shops and restaurants, with a DJ, face painting, balloon art and photo spots.
Oct20Tue
The Pumpkin Factory at MainPlace Mall
A pumpkin-patch pop-up at the mall with rides, slides, a petting zoo, games and food. Closed Mondays and Tuesdays (except Columbus Day). Entry is free Wed/Thu and $5 F...
Oct24Sat
Boo at the Zoo
Trick-or-treating along the zoo trail with animal presentations, storytelling and a teen haunted area.
Running all season
14 listingsSeasonMulti-week
Howl-O-Ween at Great Wolf Lodge
Halloween programming at the resort, including a trick-or-treat trail, yoga, a dance party and an art class.
SeasonMulti-week
Halloween Time at the Disneyland Resort
Giant pumpkins on Main Street, Haunted Mansion Holiday and Halloween overlays on popular rides.
SeasonMulti-week
Oogie Boogie Bash
Separately ticketed Halloween party with a parade, Villains Grove and treat trails. Often sells out early.
SeasonMulti-week
Spooky Science at Discovery Cube OC
Hands-on slime, skeleton and bubbling-potion science, with extra activities on weekends.
SeasonMulti-week
Knott's Scary Farm
The 53rd annual Halloween Haunt, with new mazes, scare zones and the return of the Hanging show.
SeasonMulti-week
Knott's Spooky Farm
A daytime, not-scary Halloween celebration for ages 3 to 11 with trick-or-treating and a costume contest.