Orange County, CA population age distributions
A complete breakdown of Orange County'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 | 174,484 | 5.5% |
| 5 to 9 years | 178,182 | 5.61% |
| 10 to 14 years | 203,883 | 6.42% |
| 15 to 19 years | 210,803 | 6.64% |
| 20 to 24 years | 210,198 | 6.62% |
| 25 to 29 years | 229,756 | 7.24% |
| 30 to 34 years | 221,487 | 6.98% |
| 35 to 39 years | 210,163 | 6.62% |
| 40 to 44 years | 203,571 | 6.41% |
| 45 to 49 years | 212,412 | 6.69% |
| 50 to 54 years | 221,690 | 6.98% |
| 55 to 59 years | 216,048 | 6.8% |
| 60 to 64 years | 194,191 | 6.12% |
| 65 to 69 years | 152,776 | 4.81% |
| 70 to 74 years | 125,722 | 3.96% |
| 75 to 79 years | 84,613 | 2.66% |
| 80 to 84 years | 57,336 | 1.81% |
| 85 years and over | 67,912 | 2.14% |
TABLE OF CONTENTS
Orange County, CA population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2018-2022
FIGURE 1
Orange County, CA population by age group.
The largest age group is 25 to 29 years with a population of 229,756 (7.24% of the total population).
The largest age group in Orange County, CA was for the group of age 25 to 29 years with a population of 229,756 (7.24%), according to the 2018-2022 American Community Survey.
At the same time, the smallest age group in Orange County, CA was the 80 to 84 years with a population of 57,336 (1.81%).
Orange County, CA population by age cohort
To better understand the age distribution of Orange County, 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
Orange County, CA population by age cohort
The largest age group was 18 to 64 years with a population of 2.01 million (63.20% of the total population).
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- Orange County 's population under 18 was 21.42%, compared to the 22.11% nationwide.
- Orange County's working population (between 18 and 64) was 63.20%, compared to 61.36% nationwide.
- Orange County's elderly or the senior population (over 65 age) was 15.38% as compared to 16.53% nationwide.
Orange County, CA population pyramid
Population pyramid for Orange County, 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 Orange County's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Orange County, CA, is 26.1.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Orange County, CA, is 22.9.
- Total dependency ratio for Orange County, CA is 49.0.
- Potential support ratio, which is the number of youth (working age population) per elderly, for Orange County, CA is 4.4.
FIGURE 3
Orange County, CA population pyramid
Orange County population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
Orange County, CA population pyramid
Here's the Orange County, CA's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 89,532 | 84,952 | 174,484 |
| 5 to 9 years | 91,030 | 87,152 | 178,182 |
| 10 to 14 years | 104,772 | 99,111 | 203,883 |
| 15 to 19 years | 107,020 | 103,783 | 210,803 |
| 20 to 24 years | 106,390 | 103,808 | 210,198 |
| 25 to 29 years | 118,146 | 111,610 | 229,756 |
| 30 to 34 years | 113,974 | 107,513 | 221,487 |
| 35 to 39 years | 108,158 | 102,005 | 210,163 |
| 40 to 44 years | 100,609 | 102,962 | 203,571 |
| 45 to 49 years | 105,149 | 107,263 | 212,412 |
| 50 to 54 years | 110,897 | 110,793 | 221,690 |
| 55 to 59 years | 108,261 | 107,787 | 216,048 |
| 60 to 64 years | 96,016 | 98,175 | 194,191 |
| 65 to 69 years | 72,351 | 80,425 | 152,776 |
| 70 to 74 years | 58,103 | 67,619 | 125,722 |
| 75 to 79 years | 37,722 | 46,891 | 84,613 |
| 80 to 84 years | 24,415 | 32,921 | 57,336 |
| 85 years and over | 25,468 | 42,444 | 67,912 |
Things to know
What is the population of Orange County, CA under 18?
Orange County's population under the age of 18 is 680,041, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 21.42% of the total resident population of Orange County, CA.
What is the aging population in Orange County, CA?
Orange County's population aged 65 years and above was 488,359. As per the U.S. Census Bureau's American Community Survey, this population is 15.38% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates