San Francisco County, CA population age distributions
A complete breakdown of San Francisco 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 | 35,279 | 4.22% |
| 5 to 9 years | 31,103 | 3.72% |
| 10 to 14 years | 30,636 | 3.66% |
| 15 to 19 years | 29,812 | 3.56% |
| 20 to 24 years | 40,253 | 4.81% |
| 25 to 29 years | 82,647 | 9.88% |
| 30 to 34 years | 95,134 | 11.38% |
| 35 to 39 years | 77,661 | 9.29% |
| 40 to 44 years | 58,958 | 7.05% |
| 45 to 49 years | 55,269 | 6.61% |
| 50 to 54 years | 55,448 | 6.63% |
| 55 to 59 years | 52,249 | 6.25% |
| 60 to 64 years | 48,267 | 5.77% |
| 65 to 69 years | 43,970 | 5.26% |
| 70 to 74 years | 37,619 | 4.5% |
| 75 to 79 years | 24,457 | 2.92% |
| 80 to 84 years | 16,047 | 1.92% |
| 85 years and over | 21,512 | 2.57% |
TABLE OF CONTENTS
San Francisco County, CA population by age group
Sources: U.S. Census Bureau, American Community Survey (ACS) 2019-2023
FIGURE 1
San Francisco County, CA population by age group.
The largest age group is 30 to 34 years with a population of 95,134 (11.38% of the total population).
The largest age group in San Francisco County, CA was for the group of age 30 to 34 years with a population of 95,134 (11.38%), according to the 2019-2023 American Community Survey.
At the same time, the smallest age group in San Francisco County, CA was the 80 to 84 years with a population of 16,047 (1.92%).
San Francisco County, CA population by age cohort
To better understand the age distribution of San Francisco 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
San Francisco County, CA population by age cohort
The largest age group was 18 to 64 years with a population of 577,988 (69.11% of the total population).
San Francisco County, CA population by age cohort
Here's the population for each of the three cohorts.
| Age Group | Population | % of Total Population |
|---|---|---|
| Under 18 years | 114,728 | 13.72% |
| 18 to 64 years | 577,988 | 69.11% |
| 65 years and over | 143,605 | 17.17% |
Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:
- San Francisco County 's population under 18 was 13.72%, compared to the 22.16% nationwide.
- San Francisco County's working population (between 18 and 64) was 69.11%, compared to 61% nationwide.
- San Francisco County's elderly or the senior population (over 65 age) was 17.17% as compared to 16.84% nationwide.
San Francisco County, CA population pyramid
Population pyramid for San Francisco 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 San Francisco County's population pyramid:
- Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for San Francisco County, CA, is 16.3.
- Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for San Francisco County, CA, is 24.1.
- Total dependency ratio for San Francisco County, CA is 40.4.
- Potential support ratio, which is the number of youth (working age population) per elderly, for San Francisco County, CA is 4.1.
FIGURE 3
San Francisco County, CA population pyramid
San Francisco County population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.
San Francisco County, CA population pyramid
Here's the San Francisco County, CA's male and female population across different age groups .
| Age Group | Population(Male) | Population(Female) | Total Population |
|---|---|---|---|
| Under 5 years | 18,104 | 17,175 | 35,279 |
| 5 to 9 years | 16,214 | 14,889 | 31,103 |
| 10 to 14 years | 15,444 | 15,192 | 30,636 |
| 15 to 19 years | 14,764 | 15,048 | 29,812 |
| 20 to 24 years | 19,667 | 20,586 | 40,253 |
| 25 to 29 years | 42,490 | 40,157 | 82,647 |
| 30 to 34 years | 50,273 | 44,861 | 95,134 |
| 35 to 39 years | 41,861 | 35,800 | 77,661 |
| 40 to 44 years | 31,362 | 27,596 | 58,958 |
| 45 to 49 years | 29,704 | 25,565 | 55,269 |
| 50 to 54 years | 30,274 | 25,174 | 55,448 |
| 55 to 59 years | 28,444 | 23,805 | 52,249 |
| 60 to 64 years | 25,179 | 23,088 | 48,267 |
| 65 to 69 years | 22,261 | 21,709 | 43,970 |
| 70 to 74 years | 17,483 | 20,136 | 37,619 |
| 75 to 79 years | 11,340 | 13,117 | 24,457 |
| 80 to 84 years | 7,156 | 8,891 | 16,047 |
| 85 years and over | 7,817 | 13,695 | 21,512 |
Things to know
What is the population of San Francisco County, CA under 18?
San Francisco County's population under the age of 18 is 114,728, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 13.72% of the total resident population of San Francisco County, CA.
What is the aging population in San Francisco County, CA?
San Francisco County's population aged 65 years and above was 143,605. As per the U.S. Census Bureau's American Community Survey, this population is 17.17% of the entire population.
References
- U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates
