Oct24Sat
Halloween Carnival at Los Alamitos Race Course
Carnival games, a costume contest and live horse racing. Adults $3; kids under 18 free.
On set dates
208 events
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.
Oct30Fri
Villa Park Halloween Fest
A neighborhood Halloween tradition since 2002, with contests and activities for costumed kids.
Oct16Fri
Silverado Days
An 89th-year community fair with carnival rides, food, live entertainment and the pie-eating contest.
Oct28Wed
Cops N' Goblins
Activities, costume contests, games and trunk-or-treating, co-hosted with the Buena Park Police Department.
Oct14Wed
"Citizen Kane" Library Screening
A library screening of the 1941 classic on a large screen with surround sound.
Oct13Tue
The Pumpkin Patch (Placentia)
A longtime pumpkin patch with inflatables, a petting zoo, baby chicks, gold panning, tractor and carnival rides and photo spots. Free admission.
Oct24Sat
Fall Fest at Placentia Presbyterian Church
A free community fall party with games, crafts, live music, food and candy.
Oct24Sat
Trunk or Treat at Three Sixteen Church
A free church trunk-or-treat with raffles, games and contests.
Oct13Tue
Mr. Jack-o-lantern's Pumpkin Patch
A family pumpkin patch with games and activities, birthday and field-trip bookings, and pumpkins, gourds, squash, corn stalks and hay for sale.
Oct14Wed
Horror Nerd with Samantha Hale
A live event at Brea Improv. Tickets and details through Ticketmaster.
Oct15Thu
Taylor Tomlinson: Tries Out New Ideas
A Comedy arts and theatre event at Brea Improv. Tickets and details through Ticketmaster.
Oct16Fri
Taylor Tomlinson: Tries Out New Ideas
A Comedy arts and theatre event at Brea Improv. Tickets and details through Ticketmaster.
Oct17Sat
Jack Whitehall
A Comedy arts and theatre event at Brea Improv. Tickets and details through Ticketmaster.
Oct18Sun
Jack Whitehall
A Comedy arts and theatre event at Brea Improv. Tickets and details through Ticketmaster.
Oct21Wed
Joe Fenti
A live event at Brea Improv. Tickets and details through Ticketmaster.
Oct22Thu
Ben Bankas
A live event at Brea Improv. Tickets and details through Ticketmaster.
Oct23Fri
Aida Rodriguez
A Comedy arts and theatre event at Brea Improv. Tickets and details through Ticketmaster.
Oct23Fri
ISMO
A Comedy arts and theatre event at Brea Improv. Tickets and details through Ticketmaster.
Oct24Sat
ISMO
A Comedy arts and theatre event at Brea Improv. Tickets and details through Ticketmaster.
Oct25Sun
Kanan Gill: Not This Again
A Comedy arts and theatre event at Brea Improv. Tickets and details through Ticketmaster.
Oct28Wed
Michael Palascak
A Comedy arts and theatre event at Brea Improv. Tickets and details through Ticketmaster.
Oct29Thu
Orlando Leyba
A Comedy arts and theatre event at Brea Improv. Tickets and details through Ticketmaster.
Oct31Sat
HAHALLOWEEN: Tiffany Haddish, Nate Jackson, Faizon Love, Carl-Anthony Payne & More
A Comedy arts and theatre event at Brea Improv. Tickets and details through Ticketmaster.
Running all season
28 listingsSeasonMulti-week
Discovery Day at the Farm
A recurring Discovery Day program at Centennial Farm. See the OC Fair calendar for details and registration.
SeasonMulti-week
Courageous Companions: Animals in American Wars
A Heroes Hall exhibition about animals who served in American wars. (End date assumed to be Sept 1, 2027; confirm on the OC Fair site.)
SeasonMulti-week
Oktoberfest at Old World Village
German food and beer, oom-pah bands and dancing. Family-friendly by day, 21+ on weekend nights.
SeasonMulti-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
American Red Cross Blood Drive at MainPlace
A monthly blood donation drive at MainPlace Mall, noon to 6 PM.
SeasonMulti-week
Mini Melodies at MainPlace
A free monthly music session for young children, held the first Wednesday of each month.