Diamond Bar, California facts for kids

Quick facts for kids Diamond Bar, California
City
A residential area among the hills of Diamond Bar City
Flag Seal Logo
Location of Diamond Bar in Los Angeles County, California
Diamond Bar, California Location in the United States
Country	United States
State	California
County	Los Angeles
Incorporated	April 18, 1989
Named for	Diamond Bar Ranch
Area
• Total	14.88 sq mi (38.53 km2)
• Land	14.87 sq mi (38.51 km2)
• Water	0.01 sq mi (0.01 km2)  0.04%
Elevation	696 ft (212 m)
Population  (2020)
• Total	55,072
• Density	3,703.56/sq mi (1,429.91/km2)
Time zone	UTC−8 (Pacific)
• Summer (DST)	UTC−7 (PDT)
ZIP Codes	91765, 91789 (91789 is shared with Walnut, CA)
Area code	909
FIPS code	06-19192
GNIS feature IDs	1660549, 2410334

Diamond Bar is a city in eastern Los Angeles County, California, United States. In 2020, about 55,072 people lived there. It is known for having a large Asian population. The city got its name from a special "diamond over a bar" symbol. This symbol was used as a brand for cattle on a ranch in 1918. Diamond Bar also has a public golf course run by Los Angeles County.

The city is located where the Pomona and Orange freeways meet. Diamond Bar is mostly a place where people live, with shopping centers spread around. It is surrounded by other cities like Brea, Walnut, Chino Hills, and Pomona.

Students in northern Diamond Bar go to schools in the Pomona Unified School District. Those in southern Diamond Bar attend schools in the Walnut Valley Unified School District. The city is also home to the first hydrogen fueling station in Southern California.

History of Diamond Bar

How Diamond Bar Got Its Start

In 1840, a man named José de la Luz Linares received a large piece of land. It was about 4,340 acres and was called Rancho Los Nogales. This land included Brea Canyon and the eastern Walnut Valley.

After Linares passed away, his wife sold part of the ranch to Ricardo Vejar. Over the next 10 years, Vejar bought the rest of Rancho Nogales.

The Diamond Bar Ranch

Later, the Rancho Los Nogales land was divided and sold. The biggest part became known as the Diamond Bar Ranch. At one time, this ranch was one of the largest working cattle ranches in the western United States.

In the 1950s, a company called Transamerica Corporation bought the entire Diamond Bar Ranch. They planned to build one of the first big, planned communities in the country. Transamerica named this new community "Diamond Bar." They even used the ranch's famous diamond and bar cattle brand in their logos.

Building the City

The first houses in Diamond Bar were built in 1959. They were close to where the Pomona Freeway would be built ten years later. The town grew very quickly after that.

Transamerica managed all the building in the 1960s. But in the 1970s and 1980s, Transamerica sold off its real estate projects. Because of this, the Diamond Bar project was sold to many different developers. This meant that some of the original plans for the city were not finished.

The City of Diamond Bar officially became a city on April 18, 1989.

Geography and Location

Where is Diamond Bar?

Diamond Bar is in the southeastern part of the San Gabriel Valley. This is in eastern Los Angeles County. The city is about 27 miles east of Downtown Los Angeles.

Its main road, Diamond Bar Boulevard, runs along the bottom of a valley. Houses are built on the hills overlooking this boulevard. The city is located near the ends of the Chino Fault and the Whittier Fault. These are both parts of the Elsinore Fault Zone.

Neighboring Areas and Size

Diamond Bar is next to cities like Walnut, Rowland Heights, and Pomona. It is also close to the Inland Empire region, with Chino Hills to the east. To the south, you'll find Brea and La Habra in Orange County.

The city covers about 14.9 square miles (38.5 square kilometers). It does not have any large bodies of water.

Major Roads and Freeways

Both the CA-60 Freeway and the CA-57 Freeway go through Diamond Bar. The I-10 Freeway is just north of the city. CA-71 is just east of it. Important local roads include Grand Avenue, Diamond Bar Boulevard, Pathfinder Road, Golden Springs Drive, and Brea Canyon Road.

What's the Weather Like?

Diamond Bar has a warm climate. Here are some average temperatures and rainfall:

People of Diamond Bar

Population Changes Over Time

The number of people living in Diamond Bar has changed over the years:

Who Lives in Diamond Bar?

In 2020, Diamond Bar had a population of 55,072 people.

• About 61.0% of the people were Asian.
• About 23.3% were White.
• About 4.0% were Black or African American.
• About 17.8% of the total population were Hispanics and Latinos (who can be of any race).

The average income for a household in 2021 was about $100,776. About 7.9% of the people lived below the poverty line.

Education in Diamond Bar

Diamond Bar has excellent schools, divided into two main districts.

• Students in the northern part of the city attend schools in the Pomona Unified School District. This district provides four elementary schools, one middle school, and one high school.
• Students in the southern part of the city are part of the Walnut Valley Unified School District. This district has nine elementary schools, three middle schools, and three high schools.

Economy and Jobs

What Are the Main Employers?

Many people in Diamond Bar work for different companies and organizations. Here are some of the top employers in the city:

Famous People From Diamond Bar

Many notable people have connections to Diamond Bar, including:

• Ling Ling Chang, a former California state politician.
• Danny Dorn, a former Major League Baseball player.
• Jim Edmonds, a retired Major League Baseball player.
• Bob Huff, a California state senator.
• Jay Kim, the first Korean-American congressman.
• Gary Miller, a former mayor and congressman.
• Alex Morgan, a famous soccer player and Olympic gold medalist.
• Teddy Park, a South Korean music producer and rapper.
• Gary Pettis, a former baseball player and current coach.
• Snoop Dogg, a famous rapper.
• Xavier Scruggs, a former baseball player.
• Taebin, a South Korean rapper and singer.
• Keith Van Horn, a retired NBA player.
• Ryan Wendell, an offensive lineman for the New England Patriots.
• Jason Wright, an American businessman and football executive.
• Tiffany Young, a Korean-American singer from the group Girls' Generation.
• Ippei Mizuhara, a Japanese interpreter for Major League Baseball.

See also

In Spanish: Diamond Bar para niños