Halloween events in Orange County, California, include a free silent disco in Irvine, pumpkin carving in Newport Beach, and an outdoor Halloween concert in Garden Grove. These 21 picks across 18 OC cities cover October 26–31, 2026, with family celebrations and options for adults.

4–5:30 p.m. | Tibor Rubin Library, 11962 Bailey Street

Make a monster mask, play games and search-and-find challenges, and enjoy sweet and salty snacks at this family library celebration. Costumes are optional.

4–5:30 p.m. | Laguna Niguel Library, 30341 Crown Valley Parkway

Wear your costume for face painting, crafts, games, and a spooky scavenger hunt with a candy prize. All ages are welcome.

10:30–11:30 a.m. | Donald Dungan Library, 1855 Park Avenue

Make guacamole and stuff a jack-o’-lantern pepper; the recipes require no cooking. The library lists birth to age 5 as the intended audience, with supplies for the first 40 children.

2–6 p.m. | Buena Park City Hall, 6650 Beach Boulevard

Buena Park and its police department host an afternoon of trunk-or-treating, costume contests, games, and activities.

4:30–5:30 p.m. | Westminster Library, 8180 13th Street

This Bluey-themed Halloween gathering includes crafts, trick-or-treat stations, and a dance party under black lights for children and families. Come in costume.

11 a.m.–3 p.m. | Center Street Promenade, downtown Anaheim

Downtown Anaheim’s farmers market gets a Halloween edition with themed vendors, trick-or-treating, and costume contests.

4–7 p.m. | Old Towne Orange Plaza, Chapman Avenue and Glassell Street

Trick-or-treat around the historic Orange Plaza during this free family celebration. Surrounding streets close to traffic, so allow extra time for parking; parking fees may apply.

4–5 p.m. | Laguna Beach Library, 363 Glenneyre Street

Build an edible haunted house with gingerbread and other sweet ingredients. All ages are listed, and materials are available while supplies last.

4:30–8:30 p.m. | Downtown Fullerton Plaza, 125 E. Wilshire Avenue

Browse the Halloween night market, follow the mini art walk, and trick-or-treat with participating vendors. There’s a Kids’ Corner for families, and JukeBoxx Band plays 6:30–8:30 p.m.

5:30–7:30 p.m. | Pacific Coast Church, 2651 Calle Frontera

Collect free candy from decorated trunks, visit the petting zoo, and try bounce houses and festival games. This free family event also has food trucks and photo opportunities.

3:30–8 p.m. | Central Park, 30842 La Miranda

SAMLARC’s free festival includes inflatables, a petting zoo, pumpkin decorating, and trick-or-treating. Activities end at 6 p.m.; an outdoor screening of The Nightmare Before Christmas starts at 6:30 p.m. Bring a blanket or low chair, and check the organizer’s registration details.

4–7 p.m. | Tustin Library Courtyard, 345 E. Main Street

Tustin’s free Halloween gathering features trunk-or-treating, a costume contest, bounce houses, games, and a sensory space. Note the new Library Courtyard location.

5–10 p.m. | Garden AMP, 12762 Main Street

Hear tribute sets celebrating U2, the Offspring, Oasis, and the White Stripes at this outdoor Halloween concert. The show is all ages; tickets are required.

6–9 p.m. | Irvine Spectrum Center, 670 Spectrum Center Drive

Dance outdoors with glowing headphones at this free Halloween Eve silent disco. Reservations aren’t required, but headphones are first come, first served. The event is weather permitting.

6–10 p.m. | Heritage Museum of Orange County, 3101 W. Harvard Street

Local breweries pour unlimited tastings at this Halloween beer festival, with live music and a costume contest. Admission is strictly 21+, tickets are required, and food costs extra.

9 a.m.–about 1 p.m. | Boneyard at Doheny State Beach, 25300 Dana Point Harbor Drive

Costumed surfers gather with the Doheny Longboard Surfing Association for a Halloween surf meetup and an informal costume contest. Costumes are encouraged but optional. Check current park access and parking notices before heading out; State Parks’ October 15 update reported temporary parking restrictions during storm cleanup.

10:30 a.m.–2:30 p.m. | Malibu Farm at Lido Marina Village, 3420 Via Oporto

Stop by Malibu Farm for free pumpkin carving on Halloween. The activity is available while supplies last.

1–5 p.m. | Bella Terra, 7777 Edinger Avenue

Trick-or-treat at participating shops from 1–3 p.m., then catch live music, Halloween characters, crafts, and games on The Green. Entertainment runs 2–5 p.m. Free RSVP tickets are listed online; treats are available while supplies last.

4–7 p.m. | Main Street, downtown Huntington Beach

Head to downtown Huntington Beach for an outdoor Halloween celebration on Main Street.

5 p.m. and 10 p.m. | The Frida Cinema, 305 E. 4th Street, Suite 100

See John Carpenter’s original 1978 Halloween on the big screen, with the short film Season’s Greetings shown before the feature. The film is rated R, tickets are required, and seating is first come, first served.

5–7 p.m. | Downtown Brea, Birch Street and Brea Boulevard

Take a Halloween walk through downtown Brea and trick-or-treat with participating downtown merchants.

All featured dates are in 2026, and times are local. Event details and availability may change. Confirm times, tickets, and registration with each organizer before heading out.