Download
Share
Contents
Save
Collection 5 Resources

San Diego, CA Population by Age

The median age in San Diego, CA is 35.4, as per 2021 ACS 5-Year Estimates. Of the total population, 16.48% were under the age of 15, 23.64% aged 15 to 29, 46.62% aged 30 to 64, 11.63% aged 65 to 84, and 1.64% were 85 years of age and older.
Neilsberg Research Avatar
By Neilsberg Research
Updated Sep 17, 2023

San Diego, CA population age distribution

A complete breakdown of San Diego'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 78,202 5.64%
5 to 9 years 74,181 5.35%
10 to 14 years 75,905 5.48%
15 to 19 years 82,809 5.98%
20 to 24 years 108,799 7.85%
25 to 29 years 135,910 9.81%
30 to 34 years 127,218 9.18%
35 to 39 years 106,186 7.66%
40 to 44 years 91,903 6.63%
45 to 49 years 87,577 6.32%
50 to 54 years 81,496 5.88%
55 to 59 years 79,061 5.71%
60 to 64 years 72,365 5.22%
65 to 69 years 61,278 4.42%
70 to 74 years 48,930 3.53%
75 to 79 years 30,065 2.17%
80 to 84 years 20,857 1.51%
85 years and over 22,656 1.64%
Exploring California's Diversity? Request Customized Data Now!

TABLE OF CONTENTS

San Diego, CA population by age group

Key stats
419,896
Population under 25 years
461,217
Population aged 25-44
320,499
Population aged 45-64
183,786
Population aged 65+

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

The graph shows San Diego's population by age group, with age group on x-axis and the respective age group's percent of the total population on y-axis
San Diego, CA population by age group. The largest age group was 25-29 years with a poulation of 135,910 (9.81% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in San Diego, CA was for the group of age 25-29 years with a population of 135,910 (9.81%), according to the 2021 American Community Survey.

At the same time, the smallest age group in San Diego, CA was the 80-84 years with a population of 20,857 (1.51%).

San Diego, CA population by age cohort

To better understand the age distribution of San Diego, 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
The pie chart shows San Diego's population divided into segments, with each segment representing an age cohort. The area of each segment is in the same proportion of a circle as the population of the cohort is of the total population.
San Diego, CA population by age cohorts (Children: Under 18 years; Working population: 18-64 years; Senior population: 65 years or more). The largest age group was 18 - 64 years with a poulation of 930,627 (67.17% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the population for each of the three cohorts.

Age Group Population % of Total Population
Under 18 years 270,985 19.56%
18 to 64 years 930,627 67.17%
85 years and over 183,786 13.27%
Exploring California's Diversity? Request Customized Data Now!

Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • San Diego's population under 18 was 19.56%, compared to the 22.51% nationwide.
  • San Diego's working population (between 18 and 64) was 67.17%, compared to 61.45% nationwide.
  • San Diego's elderly or the senior population (over 65 age) was 13.27% as compared to 16.04% nationwide.

San Diego, CA population pyramid

Population pyramid for San Diego, 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 Diego's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for San Diego, CA, is 23.5.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for San Diego, CA, is 18.9.
  • Total dependency ratio for San Diego, CA is 42.3.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for San Diego, CA is 5.3.
The graph shows San Diego's population across different age group and gender, with population on x-axis and population y-axis. The male population is plotted on the left in blue color whereas the female population is plotted on the right in pink color.
San Diego, CA population pyramid i.e. San Diego population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the San Diego, CA's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 38,514 39,688 78,202
5 to 9 years 38,785 35,396 74,181
10 to 14 years 39,207 36,698 75,905
15 to 19 years 43,536 39,273 82,809
20 to 24 years 59,395 49,404 108,799
25 to 29 years 70,507 65,403 135,910
30 to 34 years 67,995 59,223 127,218
35 to 39 years 55,188 50,998 106,186
40 to 44 years 47,818 44,085 91,903
45 to 49 years 44,197 43,380 87,577
50 to 54 years 42,989 38,507 81,496
55 to 59 years 39,581 39,480 79,061
60 to 64 years 35,815 36,550 72,365
65 to 69 years 28,849 32,429 61,278
70 to 74 years 22,735 26,195 48,930
75 to 79 years 13,329 16,736 30,065
80 to 84 years 9,341 11,516 20,857
85 years and over 8,922 13,734 22,656
Exploring California's Diversity? Request Customized Data Now!

Things to know

What is the population of San Diego, CA under 18?

San Diego's population under the age of 18 is 270,985, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 19.56% of the total resident population of San Diego, CA.

What is the aging population in San Diego, CA?

San Diego's population aged 65 years and above was 183,786. As per the U.S. Census Bureau's American Community Survey, this population is 13.27% of the entire population.

References

Datasets

San Diego, CA Age Group Population Dataset: A complete breakdown of San Diego age demographics from 0 to 85 years, distributed across 18 age groups
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the San Diego population distribution across 18 age groups. It lists the population in each age group along with the percentage population relative of the total population for San Diego. The dataset can be utilized to understand the population distribution of San Diego by age. For example, using this dataset, we can identify the largest age group in San Diego.

Key observations

The largest age group in San Diego, CA was for the group of age 25-29 years with a population of 135,910 (9.81%), according to the 2021 American Community Survey. At the same time, the smallest age group in San Diego, CA was the 80-84 years with a population of 20,857 (1.51%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

San Diego population by age group

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Age groups:

  • Under 5 years
  • 5 to 9 years
  • 10 to 14 years
  • 15 to 19 years
  • 20 to 24 years
  • 25 to 29 years
  • 30 to 34 years
  • 35 to 39 years
  • 40 to 44 years
  • 45 to 49 years
  • 50 to 54 years
  • 55 to 59 years
  • 60 to 64 years
  • 65 to 69 years
  • 70 to 74 years
  • 75 to 79 years
  • 80 to 84 years
  • 85 years and over

Variables / Data Columns

  • Age Group: This column displays the age group in consideration
  • Population: The population for the specific age group in the San Diego is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of San Diego total population. Please note that the sum of all percentages may not equal one due to rounding of values.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for San Diego Population by Age. You can refer the same here

San Diego, CA Age Cohorts Dataset: Children, Working Adults, and Seniors in San Diego - Population and Percentage Analysis
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the San Diego population by age cohorts (Children: Under 18 years; Working population: 18-64 years; Senior population: 65 years or more). It lists the population in each age cohort group along with its percentage relative to the total population of San Diego. The dataset can be utilized to understand the population distribution across children, working population and senior population for dependency ratio, housing requirements, ageing, migration patterns etc.

Key observations

The largest age group was $b3_v1 with a poulation of $b3_v2 ($b3_v3 of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

San Diego population by age cohort

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Age cohorts:

  • Under 18 years
  • 18 to 64 years
  • 65 years and over

Variables / Data Columns

  • Age Group: This column displays the age cohort for the San Diego population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in San Diego is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the San Diego is shown in the following column.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for San Diego Population by Age. You can refer the same here

San Diego, CA Population Pyramid Dataset: Age Groups, Male and Female Population, and Total Population for Demographics Analysis
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the data for the San Diego, CA population pyramid, which represents the San Diego population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey 5-Year estimates. It lists the male and female population for each age group, along with the total population for those age groups. Higher numbers at the bottom of the table suggest population growth, whereas higher numbers at the top indicate declining birth rates. Furthermore, the dataset can be utilized to understand the youth dependency ratio, old-age dependency ratio, total dependency ratio, and potential support ratio.

Key observations

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for San Diego, CA, is 23.5.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for San Diego, CA, is 18.9.
  • Total dependency ratio for San Diego, CA is 42.3.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for San Diego, CA is 5.3.

San Diego population pyramid

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Age groups:

  • Under 5 years
  • 5 to 9 years
  • 10 to 14 years
  • 15 to 19 years
  • 20 to 24 years
  • 25 to 29 years
  • 30 to 34 years
  • 35 to 39 years
  • 40 to 44 years
  • 45 to 49 years
  • 50 to 54 years
  • 55 to 59 years
  • 60 to 64 years
  • 65 to 69 years
  • 70 to 74 years
  • 75 to 79 years
  • 80 to 84 years
  • 85 years and over

Variables / Data Columns

  • Age Group: This column displays the age group for the San Diego population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the San Diego for the selected age group is shown in the following column.
  • Population (Female): The female population in the San Diego for the selected age group is shown in the following column.
  • Total Population: The total population of the San Diego for the selected age group is shown in the following column.

Good to know

Margin of Error

Data in the dataset are based on the estimates and are subject to sampling variability and thus a margin of error. Neilsberg Research recommends using caution when presening these estimates in your research.

Custom data

If you do need custom data for any of your research project, report or presentation, you can contact our research staff at research@neilsberg.com for a feasibility of a custom tabulation on a fee-for-service basis.

Inspiration

Neilsberg Research Team curates, analyze and publishes demographics and economic data from a variety of public and proprietary sources, each of which often includes multiple surveys and programs. The large majority of Neilsberg Research aggregated datasets and insights is made available for free download at https://www.neilsberg.com/research/.

Recommended for further research

This dataset is a part of the main dataset for San Diego Population by Age. You can refer the same here

Explore related topics

San Diego, CA Demographics San Diego, CA Population

Explore more

About the author

Neilsberg Research Avatar
Neilsberg Research
Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.
Read more from Neilsberg Research ➔

Share

This article is for informational purposes only and is not intended to be legal or tax advice. We recommend that you consult with a qualified professional such as a lawyer or accountant before making a decision. Many of the products and services featured here are from our affiliate partners. We may receive commissions on purchases made from our chosen links. Read advertiser disclosure.
Collection 5 Resources