Diamond Bar, California
Encyclopedia
Diamond Bar is a city in eastern Los Angeles County
, California
, United States
. The population was 55,544 at the 2010 census, down from 56,287 at the 2000 census. It is named after the "diamond over a bar" branding iron registered in 1918 by ranch owner Frederick E. Lewis.
Located at the junction of the Pomona and Orange freeways, Diamond Bar is primarily residential with shopping centers interspersed throughout the city. The city features a public Los Angeles County golf course.
Diamond Bar has the first hydrogen fueling station
to be built in Southern California, near the South Coast Air Quality Management District
(AQMD) building.
Rancho Los Nogales
(Ranch of the Walnut Trees) from Governor Juan Alvarado. The land grant included Brea Canyon and the eastern Walnut Valley
. Linares died in 1847, and his widow sold a part of the ranch to Ricardo Vejar for $100 in merchandise, 100 calves, and the assumption of her late husband's debts. Vejar also owned the Rancho San Jose to the east, and acquired the rest of Rancho Nogales over the next 10 years.
But Vejar's luck did not last that long. As time wore on - and particularly as the United States government took over California - Rancho Los Nogales was divided and sold into multiple land ranches, the largest of which was the Diamond Bar Ranch. At the time, it was one of the largest working cattle ranches in the western U.S. The entire Diamond Bar Ranch was acquired by the Transamerica Corporation
in the 1950s for the purpose of developing one of the nation's first master-planned communities. Transamerica gave the Diamond Bar name to its new community and incorporated the ranch's familiar diamond and bar cattle brand into various logos (many of which are still in use today).
The first houses in this development were built in 1960, adjacent to the future location of the Pomona Freeway
, which was built through the area ten years later. The town's development and population grew extremely quickly after that.
Transamerica oversaw all development of the community through the 1960s. The Transamerica Corporation divested itself of all its real estate ventures in the 1970s and 1980s. As a result, the Diamond Bar project was sold to multiple developers and much of its initial master plan was not implemented during the latter half of its development in the 1980s.
Pantera Park was originally the site of legendary Spinal Tap lead guitarist Nigel Tufnel's miniature horse farm.
The City of Diamond Bar was incorporated on April 18, 1989.
and the Whittier Fault
, both part of the larger Elsinore Fault Zone
.
Positioned in the southeastern corner of the San Gabriel Valley
in eastern Los Angeles County
, Diamond Bar is approximately 27 miles east of downtown
Los Angeles
. Neighboring communities include Walnut
, Rowland Heights
, and Pomona
. Diamond Bar is also adjacent to the Inland Empire region, with Chino Hills
directly to the east, and to the south of Diamond Bar lie the cities of Brea
and La Habra
in Orange County
.
According to the United States Census Bureau
, the city has a total area of 14.9 square miles (38.6 km²), with no significant bodies of water.
Both the 60 and 57 freeways run through Diamond Bar. The 10 freeway is just north of the city and the 71 is just east of the city. Major thoroughfares include Grand Ave., Diamond Bar Blvd., Pathfinder Rd. and Golden Springs Dr.
cities such as San Marino
and Arcadia
, Diamond Bar has experienced an influx of Asian American
residents—especially Filipino American
s, Taiwanese American, Chinese American
s, Vietnamese American
s, Korean American
s, and Indian American
s -- since the 1980s. Attracted to the area's schools and the perceived prestige of a Diamond Bar address, many affluent Asian Americans commuting to areas such as Rowland Heights
and Alhambra
have moved to Diamond Bar as well. In addition, some Asian-oriented businesses have since appeared in the city.
was 3,731.5 people per square mile (1,440.8/km²). The racial makeup of Diamond Bar was: 29,144 (52.5%) Asian; 18,434 (33.2%) White; 2,288 (4.1%) African American; 178 (0.3%) Native American; 106 (0.2%) Pacific Islander; 3,237 (5.8%) from other races
; and 2,157 (3.9%) from two or more races. Hispanic or Latino of any race were 11,138 persons (20.1%).
The Census reported that 55,415 people (99.8% of the population) lived in households, 102 (0.2%) lived in non-institutionalized group quarters, and 27 (0%) were institutionalized.
There were 17,880 households, out of which 7,008 (39.2%) had children under the age of 18 living in them, 11,792 (66.0%) were opposite-sex married couples
living together, 2,165 (12.1%) had a female householder with no husband present, 886 (5.0%) had a male householder with no wife present. There were 496 (2.8%) unmarried opposite-sex partnerships
, and 71 (0.4%) same-sex married couples or partnerships. 2,308 households (12.9%) were made up of individuals and 740 (4.1%) had someone living alone who was 65 years of age or older. The average household size was 3.10. There were 14,843 families
(83.0% of all households); the average family size was 3.38.
The population was spread out with 11,895 people (21.4%) under the age of 18, 5,590 people (10.1%) aged 18 to 24, 13,585 people (24.5%) aged 25 to 44, 17,988 people (32.4%) aged 45 to 64, and 6,486 people (11.7%) who were 65 years of age or older. The median age was 41.0 years. For every 100 females there were 95.2 males. For every 100 females age 18 and over, there were 92.3 males.
There were 18,455 housing units at an average density of 1,239.8 per square mile (478.7/km²), of which 14,513 (81.2%) were owner-occupied, and 3,367 (18.8%) were occupied by renters. The homeowner vacancy rate was 0.9%; the rental vacancy rate was 5.2%. 45,080 people (81.2% of the population) lived in owner-occupied housing units and 10,335 people (18.6%) lived in rental housing units.
of 2000, there were 56,287 people, 17,651 households, and 14,809 families residing in the city. The population density
was 3,813.2 inhabitants per square mile (1,472.4/km²). There were 17,959 housing units at an average density of 1,216.7 per square mile (469.8/km²). The racial makeup of the city was 50.4% Asian
, 33.3% White
, 3.9% Black
or African American
, 0.33% Native American
, 0.12% Pacific Islander
, 7.7% from other races
, and 4.21% from two or more races. 18.46% of the population were Hispanic or Latino
of any race.
There were 17,651 households out of which 44.4% had children under the age of 18 living with them, 68.3% were married couples
living together, 11.1% had a female householder with no husband present, and 16.1% were non-families. 12.5% of all households were made up of individuals and 2.7% had someone living alone who was 65 years of age or older. The average household size was 3.18 and the average family size was 3.47.
In the city, the population was spread out with 27.0% under the age of 18, 8.8% from 18 to 24, 29.6% from 25 to 44, 27.2% from 45 to 64, and 7.5% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 96.0 males. For every 100 females age 18 and over, there were 92.0 males.
According to the 2007 estimate, the median income for a household in the city was $87,224, and the median income for a family was $93,185. Males had a median income of $51,059 versus $37,002 for females. The per capita income
for the city was $33,540. About 5.0% of families and 6.0% of the population were below the poverty line, including 5.1% of those under age 18 and 6.1% of those age 65 or over.
The Los Angeles County Sheriff's Department
(LASD) operates the Walnut/Diamond Bar Station in Walnut
, serving Diamond Bar.
The Los Angeles County Department of Health Services
operates the Pomona Health Center in Pomona
, serving Diamond Bar.
In the state legislature
Diamond Bar is located in the 29th Senate
District, represented by Republican Bob Huff
, and in the 60th Assembly
District, represented by Republican Curt Hagman
. Federally, Diamond Bar is located in California's 42nd congressional district
, which has a Cook PVI
of R +10 and is represented by Republican Gary Miller
. It also pertains to the Fourth District of the Los Angeles County Board of Supervisors
.
and in the northern portion are part of the Pomona Unified School District
.
Schools in the Pomona Unified:
Schools in the Walnut Valley Unified:
Los Angeles County, California
Los Angeles County is a county in the U.S. state of California. As of 2010 U.S. Census, the county had a population of 9,818,605, making it the most populous county in the United States. Los Angeles County alone is more populous than 42 individual U.S. states...
, California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...
, United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
. The population was 55,544 at the 2010 census, down from 56,287 at the 2000 census. It is named after the "diamond over a bar" branding iron registered in 1918 by ranch owner Frederick E. Lewis.
Located at the junction of the Pomona and Orange freeways, Diamond Bar is primarily residential with shopping centers interspersed throughout the city. The city features a public Los Angeles County golf course.
Diamond Bar has the first hydrogen fueling station
Hydrogen station
A hydrogen station is a storage or filling station for hydrogen, usually located along a road or hydrogen highway, or at home as part of the distributed generation resources concept. The stations are usually intended to power vehicles, but can also be used to power small devices. Vehicles use...
to be built in Southern California, near the South Coast Air Quality Management District
South Coast Air Quality Management District
The South Coast Air Quality Management District , formed in 1976, is the air pollution agency responsible mainly for regulating stationary sources of air pollution for most of Los Angeles, San Bernardino, Riverside County, and all of Orange County...
(AQMD) building.
History
In 1840, Jose de la Luz Linares received the 4340 acres (1,756.3 ha) Mexican land grantRanchos of California
The Spanish, and later the Méxican government encouraged settlement of territory now known as California by the establishment of large land grants called ranchos, from which the English ranch is derived. Devoted to raising cattle and sheep, the owners of the ranchos attempted to pattern themselves...
Rancho Los Nogales
Rancho Los Nogales
Rancho Los Nogales was a Mexican land grant in present day Los Angeles County, California given in 1840 by Governor Juan Alvarado to Jose de la Luz Linares. The name means "Ranch of the Walnut Trees" in Spanish...
(Ranch of the Walnut Trees) from Governor Juan Alvarado. The land grant included Brea Canyon and the eastern Walnut Valley
Walnut Valley
Walnut Valley is a region in the eastern San Gabriel Valley of Southern California. This area is known for its rolling hills.The valley is noted for its fairly recent influx of Asian Americans into its upper-class residential neighborhoods...
. Linares died in 1847, and his widow sold a part of the ranch to Ricardo Vejar for $100 in merchandise, 100 calves, and the assumption of her late husband's debts. Vejar also owned the Rancho San Jose to the east, and acquired the rest of Rancho Nogales over the next 10 years.
But Vejar's luck did not last that long. As time wore on - and particularly as the United States government took over California - Rancho Los Nogales was divided and sold into multiple land ranches, the largest of which was the Diamond Bar Ranch. At the time, it was one of the largest working cattle ranches in the western U.S. The entire Diamond Bar Ranch was acquired by the Transamerica Corporation
Transamerica Corporation
Transamerica Corporation is a holding company for various life insurance companies and investment firms doing business primarily in the United States. It was acquired by the Dutch financial services conglomerate AEGON in 1999.-History:...
in the 1950s for the purpose of developing one of the nation's first master-planned communities. Transamerica gave the Diamond Bar name to its new community and incorporated the ranch's familiar diamond and bar cattle brand into various logos (many of which are still in use today).
The first houses in this development were built in 1960, adjacent to the future location of the Pomona Freeway
California State Route 60
State Route 60 is a state highway in the U.S. state of California. It runs from Interstate 10 near the Los Angeles River in Los Angeles east to I-10 in Riverside County, with overlaps at State Route 57 and Interstate 215.-Route description:...
, which was built through the area ten years later. The town's development and population grew extremely quickly after that.
Transamerica oversaw all development of the community through the 1960s. The Transamerica Corporation divested itself of all its real estate ventures in the 1970s and 1980s. As a result, the Diamond Bar project was sold to multiple developers and much of its initial master plan was not implemented during the latter half of its development in the 1980s.
Pantera Park was originally the site of legendary Spinal Tap lead guitarist Nigel Tufnel's miniature horse farm.
The City of Diamond Bar was incorporated on April 18, 1989.
Geography
Diamond Bar is located at 34°0′6"N 117°49′15"W (34.001652, -117.820761). The city's main road, Diamond Bar Boulevard, runs along the bottom of the valley that eventually becomes Brea Canyon, and housing developments overlook the boulevard on both sides from surrounding hills. The city lies roughly between the ends of the Chino FaultChino Fault
The Chino Fault is a fault that extends along the eastern Chino Hills range region, from Corona in Riverside County to the Los Serranos, Chino Hills area of San Bernardino County in Southern California.-Geology:...
and the Whittier Fault
Whittier Fault
The Whittier Fault is a geologic fault located in eastern Los Angeles County in Southern California, that is one of the two upper branches of the Elsinore Fault Zone, with the Chino Fault the second.-Geology:...
, both part of the larger Elsinore Fault Zone
Elsinore Fault Zone
The Elsinore Fault Zone is a large right-lateral strike-slip geological fault structure in Southern California. The fault is part of the trilateral split of the San Andreas fault system and is one of the largest, though quietest faults in Southern California....
.
Positioned in the southeastern corner of the San Gabriel Valley
San Gabriel Valley
The San Gabriel Valley is one of the principal valleys of Southern California, United States. It lies to the east of Los Angeles, to the north of the Puente Hills, to the south of the San Gabriel Mountains, and west of the Inland Empire. It derives its name from the San Gabriel River that flows...
in eastern Los Angeles County
Los Angeles County, California
Los Angeles County is a county in the U.S. state of California. As of 2010 U.S. Census, the county had a population of 9,818,605, making it the most populous county in the United States. Los Angeles County alone is more populous than 42 individual U.S. states...
, Diamond Bar is approximately 27 miles east of downtown
Downtown Los Angeles
Downtown Los Angeles is the central business district of Los Angeles, California, United States, located close to the geographic center of the metropolitan area...
Los Angeles
Los Ángeles
Los Ángeles is the capital of the province of Biobío, in the commune of the same name, in Region VIII , in the center-south of Chile. It is located between the Laja and Biobío rivers. The population is 123,445 inhabitants...
. Neighboring communities include Walnut
Walnut, California
Walnut is a city in Los Angeles County, California, United States. The population was 29,172 at the 2010 census and its current mayor is Tom King, a former Detective from the Los Angeles Police Department....
, Rowland Heights
Rowland Heights, California
Rowland Heights is an unincorporated community of , located in and below the Puente Hills in the San Gabriel Valley, in Los Angeles County, California. The population of the census-designated place was 48,993 at the 2010 census, up from 48,553 at the 2000 census...
, and Pomona
Pomona, California
-2010:The 2010 United States Census reported that Pomona had a population of 149,058, a slight decline from the 2000 census population. The population density was 6,491.2 people per square mile...
. Diamond Bar is also adjacent to the Inland Empire region, with Chino Hills
Chino Hills, California
Chino Hills is a Los Angeles suburb located in the southwestern corner of San Bernardino County, California, United States. The city borders Los Angeles County on its northwest side, Orange County to its south, and Riverside County to its southeast...
directly to the east, and to the south of Diamond Bar lie the cities of Brea
Brea, California
Brea is a city in Orange County, California. The population, as of the 2010 Census was 39,282.The city began as a center of crude oil production, was later propelled by citrus production, and is now an important retail center because of the large Brea Mall and the recently redeveloped Brea Downtown...
and La Habra
La Habra, California
La Habra is a city in the northwestern corner of Orange County, California. In the 2010 census, the city had a population of 60,239. Its related city, La Habra Heights is located to the north of La Habra, and is in Los Angeles County.-Origin of name:...
in Orange County
Orange County, California
Orange County is a county in the U.S. state of California. Its county seat is Santa Ana. As of the 2010 census, its population was 3,010,232, up from 2,846,293 at the 2000 census, making it the third most populous county in California, behind Los Angeles County and San Diego County...
.
According to the United States Census Bureau
United States Census Bureau
The United States Census Bureau is the government agency that is responsible for the United States Census. It also gathers other national demographic and economic data...
, the city has a total area of 14.9 square miles (38.6 km²), with no significant bodies of water.
Both the 60 and 57 freeways run through Diamond Bar. The 10 freeway is just north of the city and the 71 is just east of the city. Major thoroughfares include Grand Ave., Diamond Bar Blvd., Pathfinder Rd. and Golden Springs Dr.
Demographics
Similar to many San Gabriel ValleySan Gabriel Valley
The San Gabriel Valley is one of the principal valleys of Southern California, United States. It lies to the east of Los Angeles, to the north of the Puente Hills, to the south of the San Gabriel Mountains, and west of the Inland Empire. It derives its name from the San Gabriel River that flows...
cities such as San Marino
San Marino, California
San Marino is a small, affluent city in Los Angeles County, California. Incorporated in 1913, the City founders designed the community to be uniquely residential, with expansive properties surrounded by beautiful gardens, wide streets, and well maintained parkways...
and Arcadia
Arcadia, California
Arcadia is an affluent city in Los Angeles County, California, United States, and located approximately northeast of downtown Los Angeles in the San Gabriel Valley and at the base of the San Gabriel Mountains....
, Diamond Bar has experienced an influx of Asian American
Asian American
Asian Americans are Americans of Asian descent. The U.S. Census Bureau definition of Asians as "Asian” refers to a person having origins in any of the original peoples of the Far East, Southeast Asia, or the Indian subcontinent, including, for example, Cambodia, China, India, Indonesia, Japan,...
residents—especially Filipino American
Filipino American
Filipino Americans are Americans of Filipino ancestry. Filipino Americans, often shortened to "Fil-Ams", or "Pinoy",Filipinos in what is now the United States were first documented in the 16th century, with small settlements beginning in the 18th century...
s, Taiwanese American, Chinese American
Chinese American
Chinese Americans represent Americans of Chinese descent. Chinese Americans constitute one group of overseas Chinese and also a subgroup of East Asian Americans, which is further a subgroup of Asian Americans...
s, Vietnamese American
Vietnamese American
A Vietnamese American is an American of Vietnamese descent. They make up about half of all overseas Vietnamese and are the fourth-largest Asian American group....
s, Korean American
Korean American
Korean Americans are Americans of Korean descent, mostly from South Korea, with a small minority from North Korea...
s, and Indian American
Indian American
Indian Americans are Americans whose ancestral roots lie in India. The U.S. Census Bureau popularized the term Asian Indian to avoid confusion with Indigenous peoples of the Americas who are commonly referred to as American Indians.-The term: Indian:...
s -- since the 1980s. Attracted to the area's schools and the perceived prestige of a Diamond Bar address, many affluent Asian Americans commuting to areas such as Rowland Heights
Rowland Heights, California
Rowland Heights is an unincorporated community of , located in and below the Puente Hills in the San Gabriel Valley, in Los Angeles County, California. The population of the census-designated place was 48,993 at the 2010 census, up from 48,553 at the 2000 census...
and Alhambra
Alhambra, California
Alhambra is a city located in the western San Gabriel Valley region of Los Angeles County, California, United States, which is approximately eight miles from the Downtown Los Angeles civic center. As of the 2010 census, the population was 83,089, down from 85,804 at the 2000 census. The city's...
have moved to Diamond Bar as well. In addition, some Asian-oriented businesses have since appeared in the city.
2010
The 2010 United States Census reported that Diamond Bar had a population of 55,544. The population densityPopulation density
Population density is a measurement of population per unit area or unit volume. It is frequently applied to living organisms, and particularly to humans...
was 3,731.5 people per square mile (1,440.8/km²). The racial makeup of Diamond Bar was: 29,144 (52.5%) Asian; 18,434 (33.2%) White; 2,288 (4.1%) African American; 178 (0.3%) Native American; 106 (0.2%) Pacific Islander; 3,237 (5.8%) from other races
Race (United States Census)
Race and ethnicity in the United States Census, as defined by the Federal Office of Management and Budget and the United States Census Bureau, are self-identification data items in which residents choose the race or races with which they most closely identify, and indicate whether or not they are...
; and 2,157 (3.9%) from two or more races. Hispanic or Latino of any race were 11,138 persons (20.1%).
The Census reported that 55,415 people (99.8% of the population) lived in households, 102 (0.2%) lived in non-institutionalized group quarters, and 27 (0%) were institutionalized.
There were 17,880 households, out of which 7,008 (39.2%) had children under the age of 18 living in them, 11,792 (66.0%) were opposite-sex married couples
Marriage
Marriage is a social union or legal contract between people that creates kinship. It is an institution in which interpersonal relationships, usually intimate and sexual, are acknowledged in a variety of ways, depending on the culture or subculture in which it is found...
living together, 2,165 (12.1%) had a female householder with no husband present, 886 (5.0%) had a male householder with no wife present. There were 496 (2.8%) unmarried opposite-sex partnerships
POSSLQ
POSSLQ is an abbreviation for "Persons of Opposite Sex Sharing Living Quarters," a term coined in the late 1970s by the United States Census Bureau as part of an effort to more accurately gauge the prevalence of cohabitation in American households....
, and 71 (0.4%) same-sex married couples or partnerships. 2,308 households (12.9%) were made up of individuals and 740 (4.1%) had someone living alone who was 65 years of age or older. The average household size was 3.10. There were 14,843 families
Family (U.S. Census)
A family or family household is defined by the United States Census Bureau for statistical purposes as "a householder and one or more other people related to the householder by birth, marriage, or adoption. They do not include same-sex married couples even if the marriage was performed in a state...
(83.0% of all households); the average family size was 3.38.
The population was spread out with 11,895 people (21.4%) under the age of 18, 5,590 people (10.1%) aged 18 to 24, 13,585 people (24.5%) aged 25 to 44, 17,988 people (32.4%) aged 45 to 64, and 6,486 people (11.7%) who were 65 years of age or older. The median age was 41.0 years. For every 100 females there were 95.2 males. For every 100 females age 18 and over, there were 92.3 males.
There were 18,455 housing units at an average density of 1,239.8 per square mile (478.7/km²), of which 14,513 (81.2%) were owner-occupied, and 3,367 (18.8%) were occupied by renters. The homeowner vacancy rate was 0.9%; the rental vacancy rate was 5.2%. 45,080 people (81.2% of the population) lived in owner-occupied housing units and 10,335 people (18.6%) lived in rental housing units.
2000
As of the censusCensus
A census is the procedure of systematically acquiring and recording information about the members of a given population. It is a regularly occurring and official count of a particular population. The term is used mostly in connection with national population and housing censuses; other common...
of 2000, there were 56,287 people, 17,651 households, and 14,809 families residing in the city. The population density
Population density
Population density is a measurement of population per unit area or unit volume. It is frequently applied to living organisms, and particularly to humans...
was 3,813.2 inhabitants per square mile (1,472.4/km²). There were 17,959 housing units at an average density of 1,216.7 per square mile (469.8/km²). The racial makeup of the city was 50.4% Asian
Race (United States Census)
Race and ethnicity in the United States Census, as defined by the Federal Office of Management and Budget and the United States Census Bureau, are self-identification data items in which residents choose the race or races with which they most closely identify, and indicate whether or not they are...
, 33.3% White
Race (United States Census)
Race and ethnicity in the United States Census, as defined by the Federal Office of Management and Budget and the United States Census Bureau, are self-identification data items in which residents choose the race or races with which they most closely identify, and indicate whether or not they are...
, 3.9% Black
Race (United States Census)
Race and ethnicity in the United States Census, as defined by the Federal Office of Management and Budget and the United States Census Bureau, are self-identification data items in which residents choose the race or races with which they most closely identify, and indicate whether or not they are...
or African American
Race (United States Census)
Race and ethnicity in the United States Census, as defined by the Federal Office of Management and Budget and the United States Census Bureau, are self-identification data items in which residents choose the race or races with which they most closely identify, and indicate whether or not they are...
, 0.33% Native American
Race (United States Census)
Race and ethnicity in the United States Census, as defined by the Federal Office of Management and Budget and the United States Census Bureau, are self-identification data items in which residents choose the race or races with which they most closely identify, and indicate whether or not they are...
, 0.12% Pacific Islander
Race (United States Census)
Race and ethnicity in the United States Census, as defined by the Federal Office of Management and Budget and the United States Census Bureau, are self-identification data items in which residents choose the race or races with which they most closely identify, and indicate whether or not they are...
, 7.7% from other races
Race (United States Census)
Race and ethnicity in the United States Census, as defined by the Federal Office of Management and Budget and the United States Census Bureau, are self-identification data items in which residents choose the race or races with which they most closely identify, and indicate whether or not they are...
, and 4.21% from two or more races. 18.46% of the population were Hispanic or Latino
Race (United States Census)
Race and ethnicity in the United States Census, as defined by the Federal Office of Management and Budget and the United States Census Bureau, are self-identification data items in which residents choose the race or races with which they most closely identify, and indicate whether or not they are...
of any race.
There were 17,651 households out of which 44.4% had children under the age of 18 living with them, 68.3% were married couples
Marriage
Marriage is a social union or legal contract between people that creates kinship. It is an institution in which interpersonal relationships, usually intimate and sexual, are acknowledged in a variety of ways, depending on the culture or subculture in which it is found...
living together, 11.1% had a female householder with no husband present, and 16.1% were non-families. 12.5% of all households were made up of individuals and 2.7% had someone living alone who was 65 years of age or older. The average household size was 3.18 and the average family size was 3.47.
In the city, the population was spread out with 27.0% under the age of 18, 8.8% from 18 to 24, 29.6% from 25 to 44, 27.2% from 45 to 64, and 7.5% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 96.0 males. For every 100 females age 18 and over, there were 92.0 males.
According to the 2007 estimate, the median income for a household in the city was $87,224, and the median income for a family was $93,185. Males had a median income of $51,059 versus $37,002 for females. The per capita income
Per capita income
Per capita income or income per person is a measure of mean income within an economic aggregate, such as a country or city. It is calculated by taking a measure of all sources of income in the aggregate and dividing it by the total population...
for the city was $33,540. About 5.0% of families and 6.0% of the population were below the poverty line, including 5.1% of those under age 18 and 6.1% of those age 65 or over.
Government
Diamond Bar City Council is currently headed by Mayor Steve Tye and Mayor Pro Tem Ling-Ling Chang. The remaining three council members are Carol Herrera, Jack Tanaka, and Ron Everett. In January 2010, the city council voted unanimously to ban dancing and live entertainment in new businesses.The Los Angeles County Sheriff's Department
Los Angeles County Sheriff's Department
The Los Angeles County Sheriff's Department is a local county law enforcement agency that serves Los Angeles County, California. It is the fourth largest local policing agency in the United States, with the New York City Police Department being the first. The second largest is the Chicago Police...
(LASD) operates the Walnut/Diamond Bar Station in Walnut
Walnut, California
Walnut is a city in Los Angeles County, California, United States. The population was 29,172 at the 2010 census and its current mayor is Tom King, a former Detective from the Los Angeles Police Department....
, serving Diamond Bar.
The Los Angeles County Department of Health Services
Los Angeles County Department of Health Services
Health services to over 10 million residents in the Los Angeles County are provided by the Los Angeles County Department of Health Services and the Los Angeles County Department of Public Health. Mental health services are provided by the County Department of Mental Health...
operates the Pomona Health Center in Pomona
Pomona, California
-2010:The 2010 United States Census reported that Pomona had a population of 149,058, a slight decline from the 2000 census population. The population density was 6,491.2 people per square mile...
, serving Diamond Bar.
In the state legislature
California State Legislature
The California State Legislature is the state legislature of the U.S. state of California. It is a bicameral body consisting of the lower house, the California State Assembly, with 80 members, and the upper house, the California State Senate, with 40 members...
Diamond Bar is located in the 29th Senate
California State Senate
The California State Senate is the upper house of the California State Legislature. There are 40 state senators. The state legislature meets in the California State Capitol in Sacramento. The Lieutenant Governor is the ex officio President of the Senate and may break a tied vote...
District, represented by Republican Bob Huff
Bob Huff
Robert S. Huff is a U.S. politician, who is a Republican member of the California State Senate, representing the 29th Senate District, which includes portions of Los Angeles, Orange, and San Bernardino counties...
, and in the 60th Assembly
California State Assembly
The California State Assembly is the lower house of the California State Legislature. There are 80 members in the Assembly, representing an approximately equal number of constituents, with each district having a population of at least 420,000...
District, represented by Republican Curt Hagman
Curt Hagman
Curt Hagman is a Republican assemblyman from California's 60th State Assembly District The district includes all, or portions of Anaheim, Chino Hills, Diamond Bar, Industry, La Habra, La Habra Heights, La Mirada, Orange, Rowland Heights, San Dimas, Villa Park, Walnut, Whittier, and Yorba...
. Federally, Diamond Bar is located in California's 42nd congressional district
California's 42nd congressional district
California's 42nd congressional district is a congressional district in the U.S. state of California that covers parts of Los Angeles, Orange, and San Bernardino counties in Southern California.The district is currently represented by Republican Gary G...
, which has a Cook PVI
Cook Partisan Voting Index
The Cook Partisan Voting Index , sometimes referred to as simply the Partisan Voting Index , is a measurement of how strongly an American congressional district or state leans toward one political party compared to the nation as a whole...
of R +10 and is represented by Republican Gary Miller
Gary Miller
Gary Gene Miller is the U.S. Representative for , and previously the 41st, serving since 2003. He is a member of the Republican Party.-Early life, education and career:...
. It also pertains to the Fourth District of the Los Angeles County Board of Supervisors
Los Angeles County Board of Supervisors
The Los Angeles County Board of Supervisors is the five-member nonpartisan governing board of Los Angeles County, California. Members of the board of supervisors are elected by district. They were as of December 2, 2008:*District 1: Gloria Molina...
.
Education
Diamond Bar has several elementary, junior high, and high schools. The city is divided into two school districts. Those south of Grand Ave are part of the Walnut Valley Unified School DistrictWalnut Valley Unified School District
The Walnut Valley Unified School District is located in the eastern portion of Los Angeles County and is a part of the Greater Los Angeles Area of the U.S. state of California. It serves the city of Walnut and much of the city of Diamond Bar....
and in the northern portion are part of the Pomona Unified School District
Pomona Unified School District
Pomona Unified School District or PUSD serves approximately 30,000 Pre-K-12 students and 17,000 adult learners at 44 schools in Pomona and Diamond Bar, California. It is located 30 miles east of downtown Los Angeles, and is the third-largest school district in Los Angeles County...
.
Schools in the Pomona Unified:
- Armstrong Elementary School (Diamond Bar)
- Diamond Point Elementary School (Diamond Bar)
- Golden Springs Elementary School (Diamond Bar)
- Pantera Elementary School (Diamond Bar)
- Lorbeer Middle SchoolLorbeer Middle SchoolLorbeer Middle School is a school located in the city of Diamond Bar, California and belongs to the Pomona Unified School District. It is a California Distinguished School and was a National Blue Ribbon School of Excellence in 1999.- External links :*...
(Diamond Bar) - Diamond Ranch High SchoolDiamond Ranch High SchoolDiamond Ranch High School is a high school operated by the Pomona Unified School District in Pomona, California. In 2003, Diamond Ranch was named as a California Distinguished School by the California Department of Education. In April 2007, it was named a California Distinguished School for the...
(Pomona/Phillips Ranch)
Schools in the Walnut Valley Unified:
- Castle Rock Elementary School (Diamond Bar)
- Evergreen Elementary School (Diamond Bar)
- Maple Hill Elementary School (Diamond Bar)
- Quail Summit Elementary School (Diamond Bar)
- Chaparral Middle School (Diamond Bar)
- South Pointe Middle School (Diamond Bar)
- Diamond Bar High SchoolDiamond Bar High SchoolDiamond Bar High School is located in Diamond Bar, California and is part of the Walnut Valley Unified School District. The school mascot is the Brahma, and the school colors are purple, gold, and white. Diamond Bar High School students participate in programs such as Advanced Placement and...
(Diamond Bar)
Top employers
According to the City's 2009 Comprehensive Annual Financial Report, the top employers in the city are:| # | Employer | # of Employees |
|---|---|---|
| 1 | South Coast Air Quality Management District South Coast Air Quality Management District The South Coast Air Quality Management District , formed in 1976, is the air pollution agency responsible mainly for regulating stationary sources of air pollution for most of Los Angeles, San Bernardino, Riverside County, and all of Orange County... |
816 |
| 2 | Allstate Allstate The Allstate Corporation is the second-largest personal lines insurer in the United States and the largest that is publicly held. The company also has personal lines insurance operations in Canada. Allstate was founded in 1931 as part of Sears, Roebuck and Co., and was spun off in 1993... |
600 |
| 3 | Travelers | 400 |
| 4 | Target Target Corporation Target Corporation, doing business as Target, is an American retailing company headquartered in Minneapolis, Minnesota. It is the second-largest discount retailer in the United States, behind Walmart. The company is ranked at number 33 on the Fortune 500 and is a component of the Standard & Poor's... |
200 |
| 5 | Automobile Club of Southern California Automobile Club of Southern California The Automobile Club of Southern California is the Southern California affiliate of the American Automobile Association federation of motor clubs... |
200 |
| 6 | Diamond Bar High School Diamond Bar High School Diamond Bar High School is located in Diamond Bar, California and is part of the Walnut Valley Unified School District. The school mascot is the Brahma, and the school colors are purple, gold, and white. Diamond Bar High School students participate in programs such as Advanced Placement and... |
200 |
| 7 | On Assignment | 200 |
| 8 | Farmers Insurance Group | 160 |
| 9 | First Team Real Estate | 150 |
| 10 | J.F. Shea Co., Inc. Shea Homes Shea Homes, a division of the J.F. Shea Co., Inc., is America's largest privately owned new home builder. Headquartered in Walnut, California, the company develops new home communities in Arizona, California, Colorado, Florida, Nevada, North Carolina, South Carolina and Washington... |
135 |
| 11 | Goodrich Sensors and Integrated Systems Goodrich Corporation The Goodrich Corporation , formerly the B.F. Goodrich Company, is an American aerospace manufacturing company based in Charlotte, North Carolina. Founded in Akron, Ohio in 1870 as Goodrich, Tew & Co. by Dr. Benjamin Franklin Goodrich. The company name was changed to the "B.F... |
120 |
| 12 | QTC | 120 |
| 13 | Southwest Patrol | 120 |
| 14 | Starside Security & Investigation | 120 |
| 15 | Century 21 Century 21 Century 21 can mean:* AP Films - a British TV production company from the 1960s, headed by Gerry Anderson, which later became known as Century 21 Productions* Century 21 Exposition - the World's Fair held in Seattle, Washington in 1962... Diamond Realty |
120 |
| 16 | Administaff Administaff Insperity, Inc., previously known as Administaff, Inc., is a professional employer organization with its headquarters in Houston, Texas. Insperity provides human resources services to small and medium-sized businesses. Since 2004, the company has been title sponsor of a professional golf... |
100 |
| 17 | Biosense Webster | 100 |
| 18 | First Mortgage Corporation | 100 |
| 19 | Hmart Hmart H Mart is a brand of supermarkets supplying Asian cuisine and American food and products. Goods range from groceries to daily needs. In some locations Hmart provides a food court consisting of Korean, Japanese, and Chinese food... |
100 |
| 20 | K-Mart | 100 |
Notable natives and residents
- Bert BlylevenBert BlylevenBert Blyleven is a former Major League Baseball pitcher who played from to , and was best known for his curveball. Blyleven was inducted into the Baseball Hall of Fame in 2011...
, Major League BaseballMajor League BaseballMajor League Baseball is the highest level of professional baseball in the United States and Canada, consisting of teams that play in the National League and the American League...
; retired pitcher - Minnesota TwinsMinnesota TwinsThe Minnesota Twins are a professional baseball team based in Minneapolis, Minnesota. They play in the Central Division of Major League Baseball's American League. The team is named after the Twin Cities area of Minneapolis and St. Paul. They played in Metropolitan Stadium from 1961 to 1981 and the...
, Texas RangersTexas Rangers (baseball)The Texas Rangers are a professional baseball team in the Dallas-Fort Worth Metroplex, based in Arlington, Texas. The Rangers are a member of the Western Division of Major League Baseball's American League, and are the reigning A.L. Western Division and A.L. Champions. Since , the Rangers have...
, Pittsburgh PiratesPittsburgh PiratesThe Pittsburgh Pirates are a Major League Baseball club based in Pittsburgh, Pennsylvania. They play in the Central Division of the National League, and are five-time World Series Champions...
, Cleveland IndiansCleveland IndiansThe Cleveland Indians are a professional baseball team based in Cleveland, Ohio. They are in the Central Division of Major League Baseball's American League. Since , they have played in Progressive Field. The team's spring training facility is in Goodyear, Arizona...
, California AngelsLos Angeles Angels of AnaheimThe Los Angeles Angels of Anaheim are a professional baseball team based in Anaheim, California, United States. The Angels are a member of the Western Division of Major League Baseball's American League. The "Angels" name originates from the city in which the team started, Los Angeles... - Gary Brown, Major League Baseball; outfielderOutfielderOutfielder is a generic term applied to each of the people playing in the three defensive positions in baseball farthest from the batter. These defenders are the left fielder, the center fielder, and the right fielder...
- San Francisco GiantsSan Francisco GiantsThe San Francisco Giants are a Major League Baseball team based in San Francisco, California, playing in the National League West Division.... - Rod CarewRod CarewRodney Cline "Rod" Carew is a former Major League Baseball first baseman, second baseman and coach. He played from 1967 to 1985 for the Minnesota Twins and the California Angels and was elected to the All-Star game every season except his last. In 1991, Carew was inducted into the National...
, Major League Baseball; retired first baseman/second baseman - California AngelsLos Angeles Angels of AnaheimThe Los Angeles Angels of Anaheim are a professional baseball team based in Anaheim, California, United States. The Angels are a member of the Western Division of Major League Baseball's American League. The "Angels" name originates from the city in which the team started, Los Angeles...
, Minnesota TwinsMinnesota TwinsThe Minnesota Twins are a professional baseball team based in Minneapolis, Minnesota. They play in the Central Division of Major League Baseball's American League. The team is named after the Twin Cities area of Minneapolis and St. Paul. They played in Metropolitan Stadium from 1961 to 1981 and the... - Snoop DoggSnoop DoggCalvin Cordozar Broadus, Jr. , better known by his stage name Snoop Dogg, is an American rapper, record producer, and actor. Snoop is best known as a rapper in the West Coast hip hop scene, and for being one of Dr. Dre's most notable protégés. Snoop Dogg was a Crip gang member while in high school...
, Rapper - Jim EdmondsJim EdmondsJames Patrick "Jim" Edmonds is a former American Major League Baseball center fielder. He played for the California/Anaheim Angels, the St. Louis Cardinals, the San Diego Padres, the Milwaukee Brewers, the Chicago Cubs, and the Cincinnati Reds...
, retired Major League BaseballMajor League BaseballMajor League Baseball is the highest level of professional baseball in the United States and Canada, consisting of teams that play in the National League and the American League...
player, most notably with the Anaheim AngelsLos Angeles Angels of AnaheimThe Los Angeles Angels of Anaheim are a professional baseball team based in Anaheim, California, United States. The Angels are a member of the Western Division of Major League Baseball's American League. The "Angels" name originates from the city in which the team started, Los Angeles...
and St Louis Cardinals - Jay KimJay KimChang-jun "Jay" Kim is a former politician from California.-Biography:Kim was born in Seoul, South Korea. During the Korean War, his home was destroyed. He immigrated to the United States in 1961, where he graduated from Cal State LA and University of Southern California, earning degrees in civil...
, first Korean-AmericanKorean AmericanKorean Americans are Americans of Korean descent, mostly from South Korea, with a small minority from North Korea...
CongressmanUnited States House of RepresentativesThe United States House of Representatives is one of the two Houses of the United States Congress, the bicameral legislature which also includes the Senate.The composition and powers of the House are established in Article One of the Constitution... - Larissa LamLarissa LamLarissa Lam , is one of the hosts of talk show, Top 3, which airs weekly on JCTV. She also appears on the JCTV reality show, Cruise with a Cause....
, Christian singer-songwriter and music composer; currently TV host on JCTV - Natalie Mejia, Member of the pop group GirliciousGirliciousGirlicious is an American girl group originally formed by Robin Antin, creator of the Pussycat Dolls, from the CW reality TV show Pussycat Dolls Present: Girlicious. The group was originally signed to Geffen Records and composed of members Natalie Mejia, Chrystina Sayers, Nichole Corvoda and...
- Gary MillerGary MillerGary Gene Miller is the U.S. Representative for , and previously the 41st, serving since 2003. He is a member of the Republican Party.-Early life, education and career:...
, Fmr. Mayor and current CongressmanUnited States House of RepresentativesThe United States House of Representatives is one of the two Houses of the United States Congress, the bicameral legislature which also includes the Senate.The composition and powers of the House are established in Article One of the Constitution... - Alex MorganAlex MorganAlexandra Patricia "Alex" Morgan is an American soccer player from Diamond Bar, California. She is a forward for the Western New York Flash of Women's Professional Soccer and member of the US Women's National Team...
, forward, United States women's national soccer teamUnited States women's national soccer teamThe United States women's national soccer team represents the United States in international soccer competition and is controlled by U.S. Soccer. The U.S. team won the first ever Women's World Cup in 1991, and has since been a superpower in women's soccer. It is currently ranked first in the world... - Keith Van HornKeith Van HornKeith Adam Van Horn is a retired American professional basketball player. The 6-foot-10, 240-pound forward graduated from Diamond Bar High School in Diamond Bar, California and attended the University of Utah where he went on to be a consensus First Team All-American in 1997...
, retired NBANational Basketball AssociationThe National Basketball Association is the pre-eminent men's professional basketball league in North America. It consists of thirty franchised member clubs, of which twenty-nine are located in the United States and one in Canada...
star; played with the Philadelphia 76ersPhiladelphia 76ersThe Philadelphia 76ers are a professional basketball team based in Philadelphia, Pennsylvania. They play in the Atlantic Division of the Eastern Conference of the National Basketball Association . Originally known as the Syracuse Nationals, they are one of the oldest franchises in the NBA...
, New Jersey NetsNew Jersey NetsThe New Jersey Nets are a professional basketball team based in Newark, New Jersey. They are members of the Atlantic Division of the Eastern Conference in the National Basketball Association...
, Milwaukee BucksMilwaukee BucksThe Milwaukee Bucks are a professional basketball team based in Milwaukee, Wisconsin, United States. They are part of the Central Division of the Eastern Conference in the National Basketball Association . The team was founded in 1968 as an expansion team, and currently plays at the Bradley Center....
, and Dallas MavericksDallas MavericksThe Dallas Mavericks are a professional basketball team based in Dallas, Texas. They are members of the Southwest Division of the Western Conference of the National Basketball Association , and the reigning NBA champions, having defeated the Miami Heat in the 2011 NBA Finals.According to a 2011...
. - Ryan WendellRyan WendellRyan Wendell is an American football center for the New England Patriots of the National Football League . He was signed by the Patriots as an undrafted free agent in 2008. He played college football at Fresno State.-Early years:...
, Offensive lineman for the New England PatriotsNew England PatriotsThe New England Patriots, commonly called the "Pats", are a professional football team based in the Greater Boston area, playing their home games in the town of Foxborough, Massachusetts at Gillette Stadium. The team is part of the East Division of the American Football Conference in the National... - Jason Wright, Running back for the Arizona CardinalsArizona CardinalsThe Arizona Cardinals are a professional American football team based in Glendale, Arizona, a suburb of Phoenix. They are currently members of the Western Division of the National Football Conference in the National Football League...