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Community Events and Things to do in Diamond Bar, CA

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2026 Fullerton State of the City
Thu, Jun 11, 2:30 PM
Fullerton · Summit House Restaurant
2026 Fullerton State of the City
Thu, Jun 11, 2:30 PM
Fullerton · Summit House Restaurant
Almost full
A Media Luz: Baladas, Boleros & Latin Pop Oldies
Fri, Jun 19, 8:00 PM
Anaheim · Cafe Biaani'
Almost full
A Media Luz: Baladas, Boleros & Latin Pop Oldies
Fri, Jun 19, 8:00 PM
Anaheim · Cafe Biaani'
Sip, Shop & Slay: A Pride Night Market
Sat, Jun 6, 5:00 PM
glendora · Britestar Tavern
Sip, Shop & Slay: A Pride Night Market
Sat, Jun 6, 5:00 PM
glendora · Britestar Tavern
36th year Pomona Valley Juneteenth Family & Arts Arts Festival
Sat, Jun 20, 11:00 AM
Pomona · Ganesha Park
36th year Pomona Valley Juneteenth Family & Arts Arts Festival
Sat, Jun 20, 11:00 AM
Pomona · Ganesha Park
The Latin American Party
Mon, Jun 8, 7:30 PM
Anaheim · HEAT Ultra Lounge
The Latin American Party
Mon, Jun 8, 7:30 PM
Anaheim · HEAT Ultra Lounge
Sales end soon
SIC CULTURE FIKA 5K
Saturday at 9:00 AM
Norwalk · 13439 Pumice St
Sales end soon
SIC CULTURE FIKA 5K
Saturday at 9:00 AM
Norwalk · 13439 Pumice St
Disney Trivia Challenge & Ice Cream Social
Sat, Jun 27, 10:30 AM
Yorba Linda · Blue Scoop Creamery
Disney Trivia Challenge & Ice Cream Social
Sat, Jun 27, 10:30 AM
Yorba Linda · Blue Scoop Creamery
Summer Solstice Crystal Party
Sat, Jun 20, 10:00 AM
Pomona · Rough & Tumbled HQ
Summer Solstice Crystal Party
Sat, Jun 20, 10:00 AM
Pomona · Rough & Tumbled HQ
From Raíces to Bloom: The Silent Lotus Story Book Presentation & Birthday
Sat, Jun 13, 12:00 PM
Orange · 368 N Prospect St building b
From Raíces to Bloom: The Silent Lotus Story Book Presentation & Birthday
Sat, Jun 13, 12:00 PM
Orange · 368 N Prospect St building b
Cooper Museum Speaker Series: Historic Home Styles
Thu, Jun 25, 6:30 PM
Upland · 217 E A St
Cooper Museum Speaker Series: Historic Home Styles
Thu, Jun 25, 6:30 PM
Upland · 217 E A St
Sales end soon
Mamacita’s book club
Friday at 7:00 PM
San dimas · Judging a book by its cover
Sales end soon
Mamacita’s book club
Friday at 7:00 PM
San dimas · Judging a book by its cover
Sales end soon
Eid Party
Sunday at 1:00 PM
Anaheim · Canyon Rim Park
Sales end soon
Eid Party
Sunday at 1:00 PM
Anaheim · Canyon Rim Park
SAPPHIC SUMMER SOCIAL : Pride Edition
Sun, Jun 14, 7:00 PM
Santa Ana · The Copper Door, North Broadway, Santa Ana, CA, USA
SAPPHIC SUMMER SOCIAL : Pride Edition
Sun, Jun 14, 7:00 PM
Santa Ana · The Copper Door, North Broadway, Santa Ana, CA, USA
Sales end soon
Amigas on the Lawn- Latina Celebration
Sunday at 3:00 PM
Downey · 10719 Lakewood Blvd
Sales end soon
Amigas on the Lawn- Latina Celebration
Sunday at 3:00 PM
Downey · 10719 Lakewood Blvd
Cooper Museum Speaker Series: Alf Museum
Thu, Aug 27, 6:30 PM
Upland · 217 E A St
Cooper Museum Speaker Series: Alf Museum
Thu, Aug 27, 6:30 PM
Upland · 217 E A St
Cooper Museum Speaker Series: Water: Past, Present, & Future
Thu, Jul 23, 6:30 PM
Upland · 217 E A St
Cooper Museum Speaker Series: Water: Past, Present, & Future
Thu, Jul 23, 6:30 PM
Upland · 217 E A St
2026 Picnic in the Park
Fri, Jun 19, 5:00 PM + 2 more
Eastvale · Eastvale Community Park
2026 Picnic in the Park
Fri, Jun 19, 5:00 PM + 2 more
Eastvale · Eastvale Community Park
Going fast
Jonnie Park celebrates SPIT: A Life In Battles / Book Event
Tomorrow at 6:00 PM
Irvine · Bluberry Social
Going fast
Jonnie Park celebrates SPIT: A Life In Battles / Book Event
Tomorrow at 6:00 PM
Irvine · Bluberry Social
Downtown Santa Ana Historic Architecture Tour
Sat, Jun 6, 10:00 AM
Santa Ana · Old Orange County Courthouse
Downtown Santa Ana Historic Architecture Tour
Sat, Jun 6, 10:00 AM
Santa Ana · Old Orange County Courthouse
Juneteenth Comedy Jam with Kevin Tate Super Foo KBeautty and Pookie Fn Rude
Wed, Jun 10, 7:00 PM
Rancho Cucamonga · Epic Events Center
Juneteenth Comedy Jam with Kevin Tate Super Foo KBeautty and Pookie Fn Rude
Wed, Jun 10, 7:00 PM
Rancho Cucamonga · Epic Events Center

Trends in Diamond Bar

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Frequently asked questions about Diamond Bar

What are the best events to attend?

According to Eventbrite, the best events are:

2026 Fullerton State of the City

A Media Luz: Baladas, Boleros & Latin Pop Oldies

Sip, Shop & Slay: A Pride Night Market

36th year Pomona Valley Juneteenth Family & Arts Arts Festival

Which events are currently trending in Diamond Bar?

The trending searches this month in Diamond Bar are:

living trust and estate planning seminar

free kids event

Which events are coming up?

Discover the best events happening soon – you don't want to miss them:

Jonnie Park celebrates SPIT: A Life In Battles / Book Event

Mamacita’s book club

SIC CULTURE FIKA 5K