Halloween party Events and Things to do in Placentia, CA
HALLOWEEN NIGHT @ OC FAIRGROUNDS $10 W/RSVP BEFORE 10:30PM | 18+
Sat, Oct 31, 10:00 PM
Costa Mesa · OC Fairground Costa Mesa Building
HALLOWEEN NIGHT @ OC FAIRGROUNDS $10 W/RSVP BEFORE 10:30PM | 18+
Sat, Oct 31, 10:00 PM
Costa Mesa · OC Fairground Costa Mesa Building
SNL X CHRIS HALLOWEEN PARTY FINALE 18+
Sat, Oct 31, 10:00 PM
Pomona · MAXXIMO Italian Restaurant & Banquet Hall
SNL X CHRIS HALLOWEEN PARTY FINALE 18+
Sat, Oct 31, 10:00 PM
Pomona · MAXXIMO Italian Restaurant & Banquet Hall
OC FairGrounds Halloween Night, October 31st $10 w/rsvp before 10:30pm
Sat, Oct 31, 10:00 PM
Costa Mesa · OC Fair & Event Center
OC FairGrounds Halloween Night, October 31st $10 w/rsvp before 10:30pm
Sat, Oct 31, 10:00 PM
Costa Mesa · OC Fair & Event Center
La Mirage Nightclub 18+ | HALLOWEEN NIGHT SATURDAY October 31
Sat, Oct 31, 9:00 PM
Artesia · La Mirage Restaurant & Nightclub
La Mirage Nightclub 18+ | HALLOWEEN NIGHT SATURDAY October 31
Sat, Oct 31, 9:00 PM
Artesia · La Mirage Restaurant & Nightclub
Orange County: HURTBOX — No Love Lost @ The Circle OC [18+]
Today at 9:00 PM
Huntington Beach · The Circle OC
Orange County: HURTBOX — No Love Lost @ The Circle OC [18+]
Today at 9:00 PM
Huntington Beach · The Circle OC
OC Fairgrounds Halloween Costume Party, October 31st
Sat, Oct 31, 10:00 PM
Costa Mesa · OC Fair & Event Center
OC Fairgrounds Halloween Costume Party, October 31st
Sat, Oct 31, 10:00 PM
Costa Mesa · OC Fair & Event Center
10/27 SPACE TACO HOUSE TUESDAYS: Annual Halloween Party!!!
Tuesday at 9:30 PM
Pomona · the basement – pomona
10/27 SPACE TACO HOUSE TUESDAYS: Annual Halloween Party!!!
Tuesday at 9:30 PM
Pomona · the basement – pomona
Beyond the Grave Halloween Pop Up Bar - Downey, CA 2026
Today at 5:00 PM + 42 more
Downey · Beyond the Grave Pop-up
Beyond the Grave Halloween Pop Up Bar - Downey, CA 2026
Today at 5:00 PM + 42 more
Downey · Beyond the Grave Pop-up
Halloween Night @ OC Fairgrounds $10 w/rsvp before 10:30pm
Sat, Oct 31, 10:00 PM
Costa Mesa · OC Fairground Costa Mesa Building
Halloween Night @ OC Fairgrounds $10 w/rsvp before 10:30pm
Sat, Oct 31, 10:00 PM
Costa Mesa · OC Fairground Costa Mesa Building
La Mirage Nightclub 18+ | TRICK OR TREAT SATURDAY October 24
Today at 9:00 PM
Artesia · La Mirage Restaurant & Nightclub
La Mirage Nightclub 18+ | TRICK OR TREAT SATURDAY October 24
Today at 9:00 PM
Artesia · La Mirage Restaurant & Nightclub
Halloween Bash | Speed Dating | Santa Ana, CA | Singles 21+ | Cerveza Cito
Today at 5:30 PM
Santa Ana · Cerveza Cito Brewery
Halloween Bash | Speed Dating | Santa Ana, CA | Singles 21+ | Cerveza Cito
Today at 5:30 PM
Santa Ana · Cerveza Cito Brewery
![Orange County: HURTBOX — No Love Lost @ The Circle OC [18+] primary image](https://img.evbuc.com/https%3A%2F%2Fcdn.evbuc.com%2Fimages%2F1190020482%2F159033129452%2F1%2Foriginal.20260731-081749?crop=focalpoint&fit=crop&w=640&auto=format%2Ccompress&q=75&sharp=10&fp-x=0.5&fp-y=0.5&s=6c9fadd39422a78be973a8fe7e57294e)
