State
County
Land Area (mi²)
14.9 sq mi
Density (mi²)
3,694.90/sq mi
2020 Growth Rate
-0.70%
Growth Since 2010
-1.07%
Rank in State
Rank in Country
World Population Review
Diamond Bar, California Population 2021
54,948
Diamond Bar is a city located in Los Angeles County California. With a 2020 population of 54,948, it is the 165th largest city in California and the 710th largest city in the United States . Diamond Bar is currently declining at a rate of -0.70% annually and its population has decreased by -1.07% since the most recent census, which recorded a population of 55,544 in 2010. Diamond Bar reached it's highest population of 56,581 in 2016. Spanning over 15 miles, Diamond Bar has a population density of 3,695 people per square mile.
The average household income in Diamond Bar is $119,892 with a poverty rate of 6.14%. The median rental costs in recent years comes to $2,071 per month, and the median house value is $664,400. The median age in Diamond Bar is 42.6 years, 40.3 years for males, and 44.3 years for females.
Diamond Bar Demographics
According to the most recent ACS, the racial composition of Diamond Bar was:
- Asian: 58.37%
- White: 27.68%
- Other race: 6.07%
- Two or more races: 3.78%
- Black or African American: 3.63%
- Native American: 0.36%
- Native Hawaiian or Pacific Islander: 0.11%
The current population of Diamond Bar, California is 54,948 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 56,106.The last official US Census in 2010 recorded the population at 55,544.
Diamond Bar, California Population 2021
| Race | Population | Percentage |
|---|---|---|
| Asian | 32,808 | 58.37% |
| White | 15,559 | 27.68% |
| Some Other Race | 3,411 | 6.07% |
| Two or More Races | 2,126 | 3.78% |
| Black or African American | 2,040 | 3.63% |
| American Indian and Alaska Native | 205 | 0.36% |
| Native Hawaiian and Other Pacific Islander | 62 | 0.11% |
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Diamond Bar Population by Race
Diamond Bar Population Pyramid $2021
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Diamond Bar Population by Age
Diamond Bar Households and Families
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 17,904 | 3.13 | 76 |
| Married | 11,688 | 3.54 | 79.3 |
| Non Family | 3,137 | 1.29 | 70.8 |
| Female | 2,288 | 3.22 | 72.7 |
| Male | 791 | 4.07 | 56.8 |
3.47
Average Family Size
3.13
Average Household Size
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Diamond Bar Households by Type
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| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 1,400 | 3.43% |
| 9th to 12th Grade | 969 | 2.37% |
| High School Graduate | 5,929 | 14.53% |
| Some College | 6,619 | 16.22% |
| Associates Degree | 3,497 | 8.57% |
| Bachelors Degree | 14,612 | 35.80% |
| Graduate Degree | 7,784 | 19.07% |
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Diamond Bar Educational Attainment by Sex (over 25)
Diamond Bar Educational Attainment by Race
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| Race | Total | High School | Bachelors |
|---|---|---|---|
| Asian | 24,082 | 22,824 | 15,853 |
| White | 7,601 | 7,352 | 3,433 |
| Hispanic | 6,934 | 6,130 | 2,027 |
| Other Race | 2,254 | 1,933 | 539 |
| Black | 1,404 | 1,346 | 725 |
| 2+ Races | 1,050 | 1,024 | 447 |
| Native American | 116 | 116 | 43 |
| Islander | 46 | 46 | 10 |
The highest rate of high school graduation is among native american people with a rate of 100.00%.
The highest rate of bachelors degrees is among asian people with a rate of 65.83%.
Diamond Bar Educational Attainment by Race
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$50,892
Average Earnings
$61,114
Average Male
$42,455
Average Female
Diamond Bar Earnings by Educational Attainment
Diamond Bar Language by Age
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Diamond Bar Language
39.43% of Diamond Bar residents speak only English, while 60.57% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 44.66% of the population.
Diamond Bar Language
Diamond Bar Poverty by Race
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| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| Asian | 32,774 | 1,937 | 5.91% |
| Hispanic | 10,447 | 705 | 6.75% |
| White | 9,550 | 545 | 5.71% |
| Other | 3,398 | 238 | 7.00% |
| Black | 2,033 | 186 | 9.15% |
| Multiple | 2,126 | 165 | 7.76% |
| Native | 205 | 10 | 4.88% |
6.14%
Overall Poverty Rate
6.49%
Male Poverty Rate
5.81%
Female Poverty Rate
Poverty in Diamond Bar
The race most likely to be in poverty in Diamond Bar is Black, with 9.15% below the poverty level.
The race least likely to be in poverty in Diamond Bar is Native, with 4.88% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 0.54%. Among those working part-time, it was 9.67%, and for those that did not work, the poverty rate was 10.44%.
Diamond Bar Poverty
Diamond Bar Poverty Rate by Education
Diamond Bar Marital Status
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Marriage Rates
58.2%
Overall Marriage Rate
61.6%
Male Marriage Rate
55.2%
Female Marriage Rate
Diamond Bar Married by Age and Sex
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Diamond Bar Marriage
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.
Diamond Bar Marital Status by Race
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Diamond Bar Marital Status
Diamond Bar Veterans by War
Diamond Bar Veterans by Age
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| Name | Veterans | % of Total |
|---|---|---|
| White | 1,084 | 8.42% |
| Hispanic | 329 | 4.15% |
| Asian | 191 | 0.73% |
| Black | 94 | 5.56% |
| 2+ Races | 81 | 6.42% |
| Other Race | 61 | 2.29% |
| Islander | 15 | 24.19% |
| Native American | 10 | 6.94% |
Diamond Bar Veterans by Race
Diamond Bar Veterans by Education
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10.03%
Veteran Poverty Rate
28.26%
Veteran Disability Rate
Diamond Bar Veterans by Education
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62.8%
Labor Force Participation
59.2%
Employment Rate
5.6%
Unemployment Rate
Diamond Bar Employment by Age
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Diamond Bar Employment by Race
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Diamond Bar Employment by Education
Origin of Non-Citizens
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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Origin of Naturalized Citizens
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54.49%
Native Born
45.51%
Foreign Born
13.36%
Non Citizen
32.15%
Naturalized
Place of Birth
54.49% of Diamond Bar residents were born in the United States, with 43.32% having been born in California. 13.36% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.
Diamond Bar Place of Birth
| Year | Population | Growth | Annual Growth Rate |
|---|---|---|---|
| 2021 | 54,948 | -386 | -0.70% |
| 2020 | 55,334 | -386 | -0.69% |
| 2019 | 55,720 | -386 | -0.69% |
| 2018 | 56,106 | -228 | -0.40% |
| 2017 | 56,334 | -247 | -0.44% |
| 2016 | 56,581 | 152 | 0.27% |
| 2015 | 56,429 | 150 | 0.27% |
| 2014 | 56,279 | 46 | 0.08% |
| 2013 | 56,233 | 146 | 0.26% |
| 2012 | 56,087 | 233 | 0.42% |
| 2011 | 55,854 | 266 | 0.48% |
| 2010 | 55,588 | -699 | -0.12% |
| 2000 | 56,287 | 2,615 | 0.48% |
| 1990 | 53,672 | 25,627 | 6.71% |
| 1980 | 28,045 | 17,469 | 10.24% |
| 1970 | 10,576 | 0.00% |