Diamond Bar is a city located in Los Angeles County California. Diamond Bar has a 2024 population of 50,814. Diamond Bar is currently declining at a rate of -1.97% annually and its population has decreased by -7.44% since the most recent census, which recorded a population of 54,896 in 2020.
The average household income in Diamond Bar is $134,435 with a poverty rate of 8.65%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Diamond Bar is 44.7 years, 42.9 years for males, and 45.6 years for females.
According to the most recent ACS, the racial composition of Diamond Bar was:
Asian
White
Two or more races
Other race
Black or African American
Native American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 17,820 | 3.05 | 77.4 | 22.6 |
| Married | 11,363 | 3.49 | 82.5 | 17.5 |
| Non Family | 3,370 | 1.4 | 70.8 | 29.2 |
| Female | 1,965 | 3.11 | 65.2 | 34.8 |
| Male | 1,122 | 3.43 | 66.8 | 33.2 |
3.35
Average Family Size
3.05
Average Household Size
77.4%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among white people with a rate of 95.7%.
The highest rate of bachelors degrees is among asian people with a rate of 63.68%.
All
Male
Female
$57,071
Average Earnings
$64,883
Average Male
$48,991
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
40.17% of Diamond Bar residents speak only English, while 59.83% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 44.99% of the population.
rate
8.65%
Overall Poverty Rate
8.5%
Male Poverty Rate
8.78%
Female Poverty Rate
The race most likely to be in poverty in Diamond Bar is Islander, with 18.06% below the poverty level.
The race least likely to be in poverty in Diamond Bar is White, with 6.72% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 0.55%. Among those working part-time, it was 8.82%, and for those that did not work, the poverty rate was 17.44%.
Married
Widowed
Divorced
Separated
NeverMarried
56.5%
Overall Marriage Rate
59.3%
Male Marriage Rate
54.0%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 45-54.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
7.63%
Veteran Poverty Rate
20.64%
Veteran Disability Rate
LaborForceParticipation
62%
Labor Force Participation
58.7%
Employment Rate
5.2%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
45.48%
Born in Diamond Bar
54.82%
Native Born
45.18%
Foreign Born
12.97%
Non Citizen
32.21%
Naturalized
54.82% of Diamond Bar residents were born in the United States, with 45.48% having been born in California. 12.97% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2029 | 45,711 | -1,021 | -2.18% |
| 2028 | 46,732 | -1,020 | -2.14% |
| 2027 | 47,752 | -1,021 | -2.09% |
| 2026 | 48,773 | -1,020 | -2.05% |
| 2025 | 49,793 | -1,021 | -2.01% |
| 2024 | 50,814 | -1,020 | -1.97% |
| 2023 | 51,834 | -1,021 | -1.93% |
| 2022 | 52,855 | -908 | -1.69% |
| 2021 | 53,763 | -1,133 | -2.06% |
| 2020 | 54,896 | -593 | -1.07% |
| 2019 | 55,489 | -541 | -0.97% |
| 2018 | 56,030 | -368 | -0.65% |
| 2017 | 56,398 | -171 | -0.3% |
| 2016 | 56,569 | 127 | 0.23% |
| 2015 | 56,442 | 264 | 0.47% |
| 2014 | 56,178 | 70 | 0.12% |
| 2013 | 56,108 | 140 | 0.25% |
| 2012 | 55,968 | 202 | 0.36% |
| 2011 | 55,766 | 207 | 0.37% |
| 2010 | 55,559 | -728 | -1.29% |
| 2000 | 56,287 | 2,615 | 4.87% |
| 1990 | 53,672 | 25,627 | 91.38% |
| 1980 | 28,045 | 17,469 | 165.18% |
| 1970 | 10,576 | 0 | 0% |