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Best Halloween Events in Pleasanton & the Tri-Valley 2026

October 6, 2026

A family in Halloween costumes holds carved pumpkins over their faces.

October is one of the most fun times of year to explore the Tri-Valley and the East Bay. Downtown streets fill with costumes, local businesses welcome trick-or-treaters, and some of the area's favorite attractions transform for Halloween.

If you're looking for Halloween events near Pleasanton in 2026, there are already several celebrations worth adding to your calendar. From family-friendly events in Pleasanton, Livermore, San Ramon, and Danville to larger Halloween experiences in Oakland, there are options for children, families, and adults.

Here are some of the best Halloween events in Pleasanton, the Tri-Valley, and the East Bay for 2026.

Quick Answer: What Halloween Events Are Happening Near Pleasanton in 2026?

Some of the Halloween events happening near Pleasanton this October include Boo Bash and the Halloween Zom-Brew Crawl in Downtown Pleasanton, Kidz Town Halloween Hay Day in Livermore, Trick or Treat on the Farm in San Ramon, Spooktacular Celebration and Crawl-O-Ween in Danville, Boo at the Zoo at Oakland Zoo, and Halloween celebrations at Children's Fairyland.

From Downtown trick-or-treating and costume activities to an evening brew crawl and Halloween experiences at some of the East Bay's favorite attractions, these events offer plenty of ways to celebrate throughout October.

Halloween Events in Pleasanton

1. Boo Bash in Downtown Pleasanton

When: Saturday, October 17, 2026, 10 AM to 1 PM

Where: Downtown Pleasanton, beginning at Museum on Main, 603 Main Street

Admission: Free

Halloween festivities begin early in Pleasanton with Boo Bash, a family-friendly celebration throughout Downtown Pleasanton.

Families can begin at Museum on Main before following clues to participating Downtown businesses, where children can collect candy and other goodies. The event also includes a costume contest and free children's activities.

It's an easy way to spend a fall morning exploring Main Street while supporting local Pleasanton businesses.

Why We Love It

It's free, family-friendly, and takes place right in the heart of Downtown Pleasanton. Kids get to enjoy trick-or-treating and Halloween activities while families can explore the shops and restaurants that make Main Street such a special part of the community.

Best For

Families with children looking for a daytime Halloween celebration.

2. Halloween Zom-Brew Crawl

When: Saturday, October 24, 2026, 5 PM to 8 PM

Where: Downtown Pleasanton

Check-In: Museum on Main, 603 Main Street

For the adults, Downtown Pleasanton takes on a different personality during the Halloween Zom-Brew Crawl.

Participants can explore Downtown while sampling more than 20 brews from local breweries at participating locations. The evening also features costumes, live music, and plenty of Halloween atmosphere.

Tickets include tastings, select food bites, a commemorative glass, wristband, and event map.

Why We Love It

Instead of celebrating Halloween in one location, you get to make your way through Downtown Pleasanton while discovering local businesses, breweries, restaurants, and gathering spots.

Best For

Adults, beer lovers, groups of friends, and Halloween date nights.

Halloween Events in Livermore

3. Kidz Town Halloween Hay Day

When: Saturday, October 24, 2026, 10 AM to 1 PM

Where: Historic Downtown Livermore and Carnegie Park

Admission: Free

Downtown Livermore gets into the Halloween spirit with Kidz Town Halloween Hay Day, a celebration designed primarily for children in fifth grade and younger.

Families can trick-or-treat at participating Downtown businesses before heading to Carnegie Park for live music, games, children's activities, and a costume contest.

In 2026, the activities and costume contest are scheduled to take place at Carnegie Park at Third and J Streets.

Why We Love It

It combines two things we love about Livermore: its walkable Downtown and its strong sense of community. Families can enjoy the Halloween activities and make a full morning out of exploring local businesses.

Best For

Families with younger children.

Halloween Events in San Ramon

4. Trick or Treat on the Farm

When: Saturday, October 24, 2026

Where: San Ramon

San Ramon puts a local twist on Halloween with Trick or Treat on the Farm.

Guests are encouraged to arrive in costume and make their way through different stations for Halloween activities and treats to take home.

The farm setting makes this celebration a little different from traditional Downtown trick-or-treating and provides families with another way to experience San Ramon's local history and community.

Why We Love It

Halloween activities paired with a historic farm setting make this a unique seasonal experience close to home.

Best For

Families and younger children.

Halloween Events in Danville

5. Spooktacular Celebration

When: Thursday, October 22, 2026

Sessions: 4 PM to 5:30 PM and 6 PM to 7:30 PM

Where: 3005 Stone Valley Road, Danville

Registration: Required

Danville's Spooktacular Celebration is an evening designed specifically with families in mind.

Activities include arts and crafts, face painting, games, trick-or-treating, and other seasonal fun. Two sessions are scheduled, and advance registration is required because walk-ins are not accepted.

Why We Love It

With structured activities and two separate sessions, it's an easy Halloween outing for families who want plenty for the kids to do in one place.

Best For

Families with younger children.

6. Crawl-O-Ween in Downtown Danville

When: Wednesday, October 28, 2026, 5:30 PM to 8:30 PM

Where: Historic Downtown Danville

Halloween week continues with Crawl-O-Ween, bringing seasonal fun to Historic Downtown Danville.

It's another opportunity to experience one of the Tri-Valley's neighboring downtown districts during the fall season while enjoying a community-focused Halloween event.

Why We Love It

Downtown Danville already has plenty of restaurants, shops, and gathering places to explore, and Crawl-O-Ween adds a seasonal reason to spend an evening there.

Best For

Anyone looking to enjoy Historic Downtown Danville during Halloween week.

Halloween Events in Oakland

7. Boo at the Zoo at Oakland Zoo

When: Saturdays and Sundays, October 17 through November 1, 2026

Where: Oakland Zoo, 9777 Golf Links Road, Oakland

For a Halloween adventure worth the drive from the Tri-Valley, Boo at the Zoo brings seasonal fun to one of the East Bay's most popular family attractions.

Halloween experiences are scheduled throughout several weekends and include encounters with insects and reptiles, limited-edition trading cards, and Saturday costume contests.

Why We Love It

It combines a day at the zoo with Halloween activities, making it easy to turn the event into a full family outing.

Best For

Families, animal lovers, and anyone looking for a Halloween day trip from the Tri-Valley.

Halloween at Children's Fairyland

Children's Fairyland in Oakland has several seasonal celebrations planned for October, ranging from daytime family activities to an adults-only Halloween night.

8. Fall Fest at Children's Fairyland

When: October 17–18 and October 24–25, 2026, 10 AM to 4 PM

Where: Children's Fairyland, 699 Bellevue Avenue, Oakland

Fall Fest celebrates the season with hands-on activities, seasonal experiences, arts and crafts, and a giant leaf pit.

The event is included with general admission to Children's Fairyland.

Why We Love It

It's a softer introduction to the Halloween season for younger children who may enjoy fall activities more than spooky attractions.

Best For

Families with younger children.

9. Monsters' Ball at Children's Fairyland

When: Friday, October 23, 2026, 6 PM to 10 PM

Where: Children's Fairyland, Oakland

Age: 21+

After dark, Children's Fairyland transforms for Monsters' Ball, an adults-only Halloween event.

The evening includes a DJ, themed drinks, immersive experiences, and a darker Halloween interpretation of the Fairyland setting.

Why We Love It

It's one of the more unusual adult Halloween experiences in the East Bay and gives visitors a chance to experience a familiar attraction in a completely different way.

Best For

Adults looking for an alternative to a traditional Halloween bar or party.

10. Mad Magic at Children's Fairyland

When: Saturday, October 31, 2026, 12 PM to 7 PM

Where: Children's Fairyland, Oakland

Celebrate Halloween Day itself at Mad Magic, Children's Fairyland's Halloween celebration.

The event includes trick-or-treating, bouncy houses, STEM activities, arts and crafts, live performances, scavenger hunts, and plenty of candy. Costumes are encouraged.

Why We Love It

With activities running from afternoon into the evening, families can make Halloween itself the main event rather than waiting until nighttime to start celebrating.

Best For

Families looking for a full Halloween Day experience.

Which Halloween Event Is Right for You?

For young children, Boo Bash in Pleasanton, Kidz Town Halloween Hay Day in Livermore, Trick or Treat on the Farm in San Ramon, and Danville's Spooktacular Celebration offer family-oriented activities closer to home.

If you are looking for an adult Halloween experience, Downtown Pleasanton's Zom-Brew Crawl provides a night of tastings and entertainment, while Monsters' Ball at Children's Fairyland offers something completely different.

For a Halloween day trip, Oakland Zoo and Children's Fairyland make it possible to combine seasonal activities with some of the East Bay's best-known family attractions.

And if your priority is simply staying local and enjoying the community, the celebrations in Pleasanton, Livermore, San Ramon, and Danville provide plenty of reasons to stay in the Tri-Valley.

Frequently Asked Questions About Halloween in the Tri-Valley

What Halloween events are happening in Pleasanton in 2026?

Downtown Pleasanton has Boo Bash on October 17 and the Halloween Zom-Brew Crawl on October 24. Boo Bash is a free family event featuring trick-or-treating and children's activities, while the Zom-Brew Crawl is an evening event centered around beer tastings at Downtown locations.

Where can kids trick-or-treat near Pleasanton?

Families can consider Boo Bash in Pleasanton, Kidz Town Halloween Hay Day in Livermore, Trick or Treat on the Farm in San Ramon, and Spooktacular Celebration in Danville. Each offers Halloween activities geared toward families and children.

Are there Halloween events for adults near Pleasanton?

Yes. The Halloween Zom-Brew Crawl takes place in Downtown Pleasanton on October 24. Farther into the East Bay, Children's Fairyland is hosting its 21+ Monsters' Ball on October 23.

Are there free Halloween events in the Tri-Valley?

Yes. Boo Bash in Downtown Pleasanton and Kidz Town Halloween Hay Day in Downtown Livermore are both listed as free events.

Are there Halloween events on October 31?

Yes. Mad Magic at Children's Fairyland is scheduled for Halloween Day, October 31, from noon to 7 PM.

Celebrating Fall in the Tri-Valley

One of the things that makes living in the Tri-Valley special is the number of community experiences available close to home. During October, families can spend a morning trick-or-treating in Downtown Pleasanton or Livermore, visit a local fall celebration in San Ramon or Danville, or make the short trip farther into the East Bay for a day at Oakland Zoo or Children's Fairyland.

These events are also a reminder that choosing where to live is about more than finding the right house. Downtowns, parks, local businesses, annual traditions, and community events all contribute to the lifestyle that makes Pleasanton, Livermore, Dublin, San Ramon, Danville, and the surrounding East Bay feel like home.

Experience the Tri-Valley with Elation Real Estate

At Elation Real Estate, we live and work in the communities we serve, and we love sharing the local experiences that make the Tri-Valley such a special part of the East Bay.

Whether you're considering a move to Pleasanton, Livermore, Dublin, San Ramon, Danville, Alamo, Sunol, or another East Bay community, our team can help you discover the neighborhoods, lifestyle, and real estate opportunities that fit what you're looking for.

Ready to find your place in the Tri-Valley? Connect with Elation Real Estate.

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