The city of Diamond Bar, California, CA

San Gabriel Valley Master Key Podcast

About The City of Diamond Bar, California, CA

About Diamond Bar, California

Diamond Bar originated with Ricardo Vejar, who was given one of the aforementioned individual Mexican land grants in 1842. A few years later, upon his death, the territory began to be divided into several different sub-properties, the town (roughly) being one of them.

The acreage was initially utilized for cattle ranching, and a popular branding insignia is responsible for the name of Diamond Bar. In the 1950s, Transamerica used the area for a corporate planned community, but this dissolved by the mid-1980s. The town was officially incorporated in the aftermath in 1989.

Like many surrounding neighborhoods, the growth of Los Angeles-proper and the expansion of corresponding freeways resulted in a transition to working-class housing and industrial developments throughout the 20th century.

Over half of the population of Diamond Bar was identified as being of Asian descent, per the most recently available census data. Those of Latine descent account for another 1/5th of residents.

Each of these demographics has played a vital & vibrant role in much of local culture and business up to the present day.

Diamond Bar, CA FAQ

Is Diamond Bar a good place to live?

A suburb of Los Angeles, Diamond Bar has 55,339 residents. One of the nicest places to reside in California is Diamond Bar, which is located in Los Angeles County. Residents in Diamond Bar enjoy a sparse suburban vibe, and the majority own their homes. There are many parks and coffee cafes in Diamond Bar.

What is Diamond Bar famous for?

A Los Angeles County public golf course is located in the city. Diamond Bar, which is situated near the intersection of the Pomona and Orange freeways, is mostly a residential area with shopping centers scattered all over the place.

Is Diamond Bar affluent?

Diamond Bar’s per capita income in 2018 was $40,550, which is upper middle class in comparison to California and wealthy in comparison to the rest of the Nation. For a family of four, this translates to an annual income of $162,200.

What city is Diamond Bar close to?

The biggest major city near Diamond Bar is Los Angeles, CA. However, additional cities near Diamond Bar include Walnut, Pomona, and Chino Hills.

How much does it cost to live in Diamond Bar, California?

The average property in Diamond Bar costs $595,000, or $454 per square foot. According to the housing cost index for cost of living, Diamond Bar’s housing costs are 230.1% higher than the national average.

Does Diamond Bar allow Airbnb?

All residential zones in Diamond Bar have strict regulations against short-term rentals.

Diamond Bar, California Demographics

Age and Household Statistics in Diamond Bar

Male Population: 26,746

Female Population: 28,593

Diamond Bar Population: 55,339

Median Age: 43.7

Under 5 years old: approx. 5.3%

Under 18 years old: approx. 20.3%

Residents 65 or older: approx. 18.4%

Total Households: 17,788

Average People Per Household: 3

Marital Status Statistics

Never Married: 13,579

Married: 26,599

Separated: 300

Widowed: 2,346

Divorced: 3,480

Racial Statistics (percentages) in Diamond Bar

White: 23.3%

Black or African American: 4.0%

American Indian/Native American: 0.4%

Asian: 61.0%

Two or More Races: 6.0%

Hispanic or Latino: 17.8%

Income Statistics in Diamond Bar

Average Household Income: $126,368

Median Household Income: $100,776

People below Poverty Level: 4,304

Blue Collar Positions: 2,683

White Collar Positions: 24,339

Education Level in Diamond Bar

No High School: 1,516

Some High School: 7,969

Some College: 10,119

Associate Degree: 3,551

Bachelor’s Degree: 14,980

Graduate Degree: 7,686

  • Named after the branding iron Diamond Over A Bar registered by Frederic Lewis.
  • Home of the first hydrogen fueling station.
  • Snoop Dogg is from Diamond Bar, California.
  • There have been a number of movies filmed in Diamond Bar
    • Beware of the Blob (1972)
    • Night Wars (1988)
    • Born Killer (1989)
    • Raspberry & Lavender (2004)

Diamond Bar Climate 

Mild, year-round Mediterranean climate:

76 F | 24 C average daytime

54 F | 12 C average nighttime

The summers are typically short. They feel warm and are particularly arid. The winters are long

and feel wet and cool. 

The warmest season is from the end of June until mid-September, with an average of 85F on the

hottest days. 


The coolest season is from mid-November all the way until mid-March. The average

the temperature in the cool time is a little below 70F. 

It doesn’t rain very much in Diamond Bar, but the 6-month stretch between October and April

shows about 31 days. And the opposite, from April to October, started a “rainless” period, where

there is little expectation of rainfall. Cloud cover, even without rain, is not uncommon during the

cooler months.

Diamond Bar, California, CA Points of Interest

T.H. Pendergast California Parole Museum

Located at 21015 Pathfinder Road, 2nd Floor Diamond Bar, CA 91765, the museum contains artifacts on the history of parole in California. 


City Diamond Bar’s Birthday Party

This happens every April and celebrates the community’s cultural diversity and patriotic spirit. The Birthday Party features games, rides, entertainment, food, a craft fair, a car show, and more. 


4th Of July Bash

On Independence Day, the city celebrates the fourth of July with an impressive display of fireworks.


Concerts in the Park

Every Wednesday in the summer, from late June to August, the city has concerts in Sycamore Canyon Park that are free to the public