Diamond Bar, CA population age distributions
A complete breakdown of Diamond Bar's age demographics from 0 to 85 years, distributed across 18 age groups is listed in the table below.
| Age Group | Population | % of Total Population |
|---|---|---|
| Under 5 years | 2,512 | 4.61% |
| 5 to 9 years | 2,539 | 4.66% |
| 10 to 14 years | 3,546 | 6.5% |
| 15 to 19 years | 3,307 | 6.06% |
| 20 to 24 years | 2,575 | 4.72% |
| 25 to 29 years | 3,513 | 6.44% |
| 30 to 34 years | 3,326 | 6.1% |
| 35 to 39 years | 2,987 | 5.48% |
| 40 to 44 years | 3,258 | 5.97% |
| 45 to 49 years | 3,942 | 7.23% |
| 50 to 54 years | 4,098 | 7.51% |
| 55 to 59 years | 4,968 | 9.11% |
| 60 to 64 years | 3,849 | 7.06% |
| 65 to 69 years | 3,589 | 6.58% |
| 70 to 74 years | 2,921 | 5.36% |
| 75 to 79 years | 1,471 | 2.7% |
| 80 to 84 years | 970 | 1.78% |
| 85 years and over | 1,163 | 2.13% |
TABLE OF CONTENTS
Diamond Bar, CA population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2018-2022
FIGURE 1
Diamond Bar, CA population by age group.
The largest age group is 55 to 59 years with a population of 4,968 (9.11% of the total population).
The largest age group in Diamond Bar, CA was for the group of age 55 to 59 years with a population of 4,968 (9.11%), according to the 2018-2022 American Community Survey.
At the same time, the smallest age group in Diamond Bar, CA was the 80 to 84 years with a population of 970 (1.78%).
Diamond Bar, CA population by age cohort
To better understand the age distribution of Diamond Bar, CA's population, we divided it into the following 3 cohorts:
- Children : Under the age of 18 years
- Adults (working population): Between the age of 18 and 64 years
- Seniors: 65 years and above
FIGURE 2
Diamond Bar, CA population by age cohort
The largest age group was 18 to 64 years with a population of 33,806 (61.99% of the total population).
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Diamond Bar 's population under 18 was 19.46%, compared to the 22.11% nationwide.
- Diamond Bar's working population (between 18 and 64) was 61.99%, compared to 61.36% nationwide.
- Diamond Bar's elderly or the senior population (over 65 age) was 18.55% as compared to 16.53% nationwide.
Diamond Bar, CA population pyramid
Population pyramid for Diamond Bar, CA is charted below using the estimates from U.S. Census Bureau's American Community Survey 5-Year estimates. A wide base suggests population increase, narrow base indicates declining birth rates.
Key stats from our analysis of the Diamond Bar's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Diamond Bar, CA, is 24.0.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Diamond Bar, CA, is 28.2.
- Total dependency ratio for Diamond Bar, CA is 52.2.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Diamond Bar, CA is 3.5.
FIGURE 3
Diamond Bar, CA population pyramid
Diamond Bar population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
Diamond Bar, CA population pyramid
Here's the Diamond Bar, CA's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 1,330 | 1,182 | 2,512 |
| 5 to 9 years | 1,112 | 1,427 | 2,539 |
| 10 to 14 years | 1,702 | 1,844 | 3,546 |
| 15 to 19 years | 1,667 | 1,640 | 3,307 |
| 20 to 24 years | 1,317 | 1,258 | 2,575 |
| 25 to 29 years | 1,841 | 1,672 | 3,513 |
| 30 to 34 years | 1,584 | 1,742 | 3,326 |
| 35 to 39 years | 1,614 | 1,373 | 2,987 |
| 40 to 44 years | 1,441 | 1,817 | 3,258 |
| 45 to 49 years | 1,832 | 2,110 | 3,942 |
| 50 to 54 years | 1,893 | 2,205 | 4,098 |
| 55 to 59 years | 2,532 | 2,436 | 4,968 |
| 60 to 64 years | 1,648 | 2,201 | 3,849 |
| 65 to 69 years | 1,790 | 1,799 | 3,589 |
| 70 to 74 years | 1,228 | 1,693 | 2,921 |
| 75 to 79 years | 614 | 857 | 1,471 |
| 80 to 84 years | 464 | 506 | 970 |
| 85 years and over | 407 | 756 | 1,163 |
Things to know
What is the population of Diamond Bar, CA under 18?
Diamond Bar's population under the age of 18 is 10,614, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 19.46% of the total resident population of Diamond Bar, CA.
What is the aging population in Diamond Bar, CA?
Diamond Bar's population aged 65 years and above was 10,114. As per the U.S. Census Bureau's American Community Survey, this population is 18.55% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates