Best events in
Diamond Bar

For events and things to do in Diamond Bar, CA, the local calendar is defined by community-focused programming and a relaxed, suburban pace. Many gatherings are organized by the city and take place in its numerous parks, which serve as the primary social hubs for residents. For more varied nightlife and a broader range of dedicated performance venues, locals often explore the options in neighboring Los Angeles and Orange County cities.

The city's social rhythm revolves around its public parks, with Summitridge Park in particular hosting free concerts and seasonal festivals.
A full calendar of family-oriented activities includes annual traditions like the Winter Snow Fest, an Earth Day Celebration, and the Juneteenth Community Festival.
Live music seekers can find performances at nearby venues like the Royal Vista Club, a popular spot located in the adjacent city of Walnut.

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Popular in Diamond Bar

Lean Six Sigma Green Belt Certification Bootcamp in Diamond Bar, CA

Tomorrow • 9:00 AM + 5 more

1370 Valley Vista Dr ste 200

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Lala Launch Party

Thu, Oct 15 • 6:00 PM

Lala Aesthetics Medspa

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Workshop: Organic Gardening 101 (Diamond Bar)

Sat, Oct 17 • 10:00 AM

Diamond Bar Center

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Free Educational Seminar on Estate Planning - Diamond Bar

Thu, Oct 22 • 9:30 AM

Holiday Inn - Diamond Bar

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Brunch with New Friends: Diamond Bar

Sun, Nov 1 • 12:00 PM + 1 more

Restaurant of the Day

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SoCal HHW Information Exchange (HHWIE) - Diamond Bar

Thu, Nov 5 • 8:00 AM

Diamond Bar Center

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4th Annual Employment Expo presented by ESGV SELPA CAC

Sat, Jan 23 • 9:00 AM

Chaparral Middle School

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Lean Six Sigma Green Belt Certification Bootcamp in Diamond Bar, CA

Tomorrow • 9:00 AM + 5 more

1370 Valley Vista Dr ste 200

Check ticket price on event

Lala Launch Party

Thu, Oct 15 • 6:00 PM

Lala Aesthetics Medspa

Check ticket price on event

Workshop: Organic Gardening 101 (Diamond Bar)

Sat, Oct 17 • 10:00 AM

Diamond Bar Center

Check ticket price on event

Free Educational Seminar on Estate Planning - Diamond Bar

Thu, Oct 22 • 9:30 AM

Holiday Inn - Diamond Bar

Check ticket price on event

Brunch with New Friends: Diamond Bar

Sun, Nov 1 • 12:00 PM + 1 more

Restaurant of the Day

Check ticket price on event

SoCal HHW Information Exchange (HHWIE) - Diamond Bar

Thu, Nov 5 • 8:00 AM

Diamond Bar Center

Check ticket price on event

4th Annual Employment Expo presented by ESGV SELPA CAC

Sat, Jan 23 • 9:00 AM

Chaparral Middle School

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Online Events

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How To Be Kind To Yourself - Shahroo Izadi

Wed, Oct 14 • 7:00 PM GMT+1

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HBR Press Webinar: Resilient Optimism

Thu, Oct 15 • 8:00 AM EDT

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HBR Book Webinar: Resilient Optimism

Thu, Oct 15 • 1:00 PM GMT+1

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Today's RDH Virtual Dental Continuing Education (CE) Event - Oct. 17, 2026

Sat, Oct 17 • 9:00 AM EDT

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(ONLINE) Women on the Move with Ann Patchett

Tue, Oct 27 • 11:30 AM EDT

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Witch hunts and real lives

Fri, Oct 30 • 2:00 PM GMT

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Lean Global Connection 2026

Thu, Nov 12 • 2:00 PM UTC

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Washington Crossing the Delaware / The Crossing - Film History Livestream

Sat, Dec 19 • 8:00 PM EST

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How To Be Kind To Yourself - Shahroo Izadi

Wed, Oct 14 • 7:00 PM GMT+1

Check ticket price on event

HBR Press Webinar: Resilient Optimism

Thu, Oct 15 • 8:00 AM EDT

Check ticket price on event

HBR Book Webinar: Resilient Optimism

Thu, Oct 15 • 1:00 PM GMT+1

Check ticket price on event

Today's RDH Virtual Dental Continuing Education (CE) Event - Oct. 17, 2026

Sat, Oct 17 • 9:00 AM EDT

Check ticket price on event

(ONLINE) Women on the Move with Ann Patchett

Tue, Oct 27 • 11:30 AM EDT

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Witch hunts and real lives

Fri, Oct 30 • 2:00 PM GMT

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Lean Global Connection 2026

Thu, Nov 12 • 2:00 PM UTC

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Washington Crossing the Delaware / The Crossing - Film History Livestream

Sat, Dec 19 • 8:00 PM EST

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Business & Professional events

Lean Six Sigma Green Belt Certification Bootcamp in Diamond Bar, CA

Tomorrow • 9:00 AM + 5 more

1370 Valley Vista Dr ste 200

Check ticket price on event

Free Educational Seminar on Estate Planning - Diamond Bar

Thu, Oct 22 • 9:30 AM

Holiday Inn - Diamond Bar

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4th Annual Employment Expo presented by ESGV SELPA CAC

Sat, Jan 23 • 9:00 AM

Chaparral Middle School

Check ticket price on event

Wedding & Event Expo 2027

Sun, Feb 28 • 11:00 AM

Diamond Bar Center

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Lean Six Sigma Green Belt Certification Bootcamp in Diamond Bar, CA

Tomorrow • 9:00 AM + 5 more

1370 Valley Vista Dr ste 200

Check ticket price on event

Free Educational Seminar on Estate Planning - Diamond Bar

Thu, Oct 22 • 9:30 AM

Holiday Inn - Diamond Bar

Check ticket price on event

4th Annual Employment Expo presented by ESGV SELPA CAC

Sat, Jan 23 • 9:00 AM

Chaparral Middle School

Check ticket price on event

Wedding & Event Expo 2027

Sun, Feb 28 • 11:00 AM

Diamond Bar Center

Check ticket price on event

Free events

Lala Launch Party

Thu, Oct 15 • 6:00 PM

Lala Aesthetics Medspa

Check ticket price on event

Workshop: Organic Gardening 101 (Diamond Bar)

Sat, Oct 17 • 10:00 AM

Diamond Bar Center

Check ticket price on event

Free Educational Seminar on Estate Planning - Diamond Bar

Thu, Oct 22 • 9:30 AM

Holiday Inn - Diamond Bar

Check ticket price on event

4th Annual Employment Expo presented by ESGV SELPA CAC

Sat, Jan 23 • 9:00 AM

Chaparral Middle School

Check ticket price on event

Lala Launch Party

Thu, Oct 15 • 6:00 PM

Lala Aesthetics Medspa

Check ticket price on event

Workshop: Organic Gardening 101 (Diamond Bar)

Sat, Oct 17 • 10:00 AM

Diamond Bar Center

Check ticket price on event

Free Educational Seminar on Estate Planning - Diamond Bar

Thu, Oct 22 • 9:30 AM

Holiday Inn - Diamond Bar

Check ticket price on event

4th Annual Employment Expo presented by ESGV SELPA CAC

Sat, Jan 23 • 9:00 AM

Chaparral Middle School

Check ticket price on event

Frequently asked questions about Diamond Bar

What are some family-friendly events in Diamond Bar?

The city of Diamond Bar organizes numerous events perfect for all ages. These are often held in community parks and include annual traditions like the Winter Snow Fest in December, a Breakfast with the Bunny celebration, and an Earth Day event in April.

Where can I find free things to do in Diamond Bar?

Summitridge Park is a key destination for free community entertainment. It hosts the city's annual Concerts in the Park series on select evenings in July, and public gatherings like the Juneteenth Community Festival also offer free admission.

Are there many outdoor events in Diamond Bar?

Yes, the city's extensive park system is central to its event calendar, especially Summitridge Park. This space hosts seasonal festivals, open-air concerts, and other community gatherings that take advantage of the area's green spaces and popular trails.

What's the live music scene like around Diamond Bar?

The local music scene is fairly quiet, so residents often look to neighboring areas. The Royal Vista Club in nearby Walnut is a notable spot for live music, drawing crowds from Diamond Bar for its performances and events.

How can I find food and drink events in the area?

The annual Diamond Bar Restaurant Week in October is the highlight of the local culinary calendar. This event celebrates the city's dining scene, with various establishments participating. The Diamond Bar Golf Course also hosts occasional food-focused gatherings.

Does Diamond Bar have a lively nightlife?

Diamond Bar offers a relaxed, suburban pace rather than a bustling nightlife scene. For late-night entertainment, comedy clubs, or a wider variety of bars, residents typically explore the more extensive options in nearby Los Angeles and Orange County cities.

What kind of community events happen at the Diamond Bar Center?

The Diamond Bar Center is a primary hub for city-organized community functions. Adjacent to Summitridge Park, it serves as a key venue for civic gatherings, seasonal festivals, and celebrations that cater to local residents and their families.

What are the best date night ideas in Diamond Bar?

A nice dinner during Diamond Bar Restaurant Week offers a great local option. For other outings, consider a special event at the Diamond Bar Golf Course or catching a performance at the Royal Vista Club in Walnut for live music.