Palo Alto, CA Population by Age

The median age in Palo Alto, CA is 41.8, as per 2021 ACS 5-Year Estimates. Of the total population, 17.97% were under the age of 15, 17.93% aged 15 to 29, 45.62% aged 30 to 64, 14.27% aged 65 to 84, and 4.21% were 85 years of age and older.
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Updated Sep 17, 2023

Palo Alto, CA population age distribution

A complete breakdown of Palo Alto'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 3,257 4.75%
5 to 9 years 3,841 5.6%
10 to 14 years 5,231 7.62%
15 to 19 years 4,670 6.81%
20 to 24 years 3,242 4.72%
25 to 29 years 4,390 6.4%
30 to 34 years 3,949 5.75%
35 to 39 years 4,091 5.96%
40 to 44 years 4,245 6.19%
45 to 49 years 5,129 7.47%
50 to 54 years 4,987 7.27%
55 to 59 years 5,060 7.37%
60 to 64 years 3,848 5.61%
65 to 69 years 3,046 4.44%
70 to 74 years 2,650 3.86%
75 to 79 years 2,051 2.99%
80 to 84 years 2,047 2.98%
85 years and over 2,890 4.21%
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Palo Alto, CA population by age group

Key stats
20,241
Population under 25 years
16,675
Population aged 25-44
19,024
Population aged 45-64
12,684
Population aged 65+

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

The graph shows Palo Alto'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
Palo Alto, CA population by age group. The largest age group was 10-14 years with a poulation of 5,231 (7.62% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Palo Alto, CA was for the group of age 10-14 years with a population of 5,231 (7.62%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Palo Alto, CA was the 80-84 years with a population of 2,047 (2.98%).

Palo Alto, CA population by age cohort

To better understand the age distribution of Palo Alto, 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 Palo Alto'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.
Palo Alto, 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 40,164 (58.53% 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 15,776 22.99%
18 to 64 years 40,164 58.53%
85 years and over 12,684 18.48%
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Key stats for each age cohort as per our analysis of U.S. Census Bureau American Community Survey:

  • Palo Alto's population under 18 was 22.99%, compared to the 22.51% nationwide.
  • Palo Alto's working population (between 18 and 64) was 58.53%, compared to 61.45% nationwide.
  • Palo Alto's elderly or the senior population (over 65 age) was 18.48% as compared to 16.04% nationwide.

Palo Alto, CA population pyramid

Population pyramid for Palo Alto, 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 Palo Alto's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Palo Alto, CA, is 28.3.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Palo Alto, CA, is 29.1.
  • Total dependency ratio for Palo Alto, CA is 57.4.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Palo Alto, CA is 3.4.
The graph shows Palo Alto'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.
Palo Alto, CA population pyramid i.e. Palo Alto population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Palo Alto, CA's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 1,368 1,889 3,257
5 to 9 years 2,126 1,715 3,841
10 to 14 years 2,563 2,668 5,231
15 to 19 years 2,266 2,404 4,670
20 to 24 years 1,641 1,601 3,242
25 to 29 years 2,469 1,921 4,390
30 to 34 years 2,076 1,873 3,949
35 to 39 years 1,858 2,233 4,091
40 to 44 years 2,140 2,105 4,245
45 to 49 years 2,591 2,538 5,129
50 to 54 years 2,452 2,535 4,987
55 to 59 years 2,439 2,621 5,060
60 to 64 years 1,943 1,905 3,848
65 to 69 years 1,420 1,626 3,046
70 to 74 years 1,195 1,455 2,650
75 to 79 years 872 1,179 2,051
80 to 84 years 870 1,177 2,047
85 years and over 935 1,955 2,890
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Things to know

What is the population of Palo Alto, CA under 18?

Palo Alto's population under the age of 18 is 15,776, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 22.99% of the total resident population of Palo Alto, CA.

What is the aging population in Palo Alto, CA?

Palo Alto's population aged 65 years and above was 12,684. As per the U.S. Census Bureau's American Community Survey, this population is 18.48% of the entire population.

References

Datasets

Explore datasets by year of publication.
2023
Palo Alto, CA Age Group Population Dataset: A complete breakdown of Palo Alto age demographics from 0 to 85 years, distributed across 18 age groups
Last updated September 16, 2023
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the Palo Alto 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 Palo Alto. The dataset can be utilized to understand the population distribution of Palo Alto by age. For example, using this dataset, we can identify the largest age group in Palo Alto.

Key observations

The largest age group in Palo Alto, CA was for the group of age 10-14 years with a population of 5,231 (7.62%), according to the 2021 American Community Survey. At the same time, the smallest age group in Palo Alto, CA was the 80-84 years with a population of 2,047 (2.98%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Palo Alto 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 Palo Alto is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of Palo Alto 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 Palo Alto Population by Age. You can refer the same here

Palo Alto, CA Age Cohorts Dataset: Children, Working Adults, and Seniors in Palo Alto - Population and Percentage Analysis
Last updated September 16, 2023
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the Palo Alto 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 Palo Alto. 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.

Palo Alto 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 Palo Alto population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in Palo Alto is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the Palo Alto 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 Palo Alto Population by Age. You can refer the same here

Palo Alto, CA Population Pyramid Dataset: Age Groups, Male and Female Population, and Total Population for Demographics Analysis
Last updated September 16, 2023
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the data for the Palo Alto, CA population pyramid, which represents the Palo Alto 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 Palo Alto, CA, is 28.3.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Palo Alto, CA, is 29.1.
  • Total dependency ratio for Palo Alto, CA is 57.4.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Palo Alto, CA is 3.4.

Palo Alto 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 Palo Alto population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the Palo Alto for the selected age group is shown in the following column.
  • Population (Female): The female population in the Palo Alto for the selected age group is shown in the following column.
  • Total Population: The total population of the Palo Alto 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 Palo Alto Population by Age. You can refer the same here

If you're looking for datasets from another year, please feel free to contact us at research@neilsberg.com and we'll be happy to assist you further.

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

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