Lake Forest, CA Population by Age

The median age in Lake Forest, CA is 40.1, as per 2021 ACS 5-Year Estimates. Of the total population, 17.70% were under the age of 15, 18.28% aged 15 to 29, 50.49% aged 30 to 64, 12.05% aged 65 to 84, and 1.47% were 85 years of age and older.
Neilsberg Research Avatar
Updated Sep 17, 2023

Lake Forest, CA population age distribution

A complete breakdown of Lake Forest'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 5,455 6.38%
5 to 9 years 4,873 5.7%
10 to 14 years 4,810 5.62%
15 to 19 years 4,665 5.46%
20 to 24 years 4,967 5.81%
25 to 29 years 6,003 7.02%
30 to 34 years 5,553 6.49%
35 to 39 years 6,332 7.4%
40 to 44 years 6,409 7.49%
45 to 49 years 6,469 7.56%
50 to 54 years 7,268 8.5%
55 to 59 years 5,954 6.96%
60 to 64 years 5,193 6.07%
65 to 69 years 4,035 4.72%
70 to 74 years 3,420 4%
75 to 79 years 1,906 2.23%
80 to 84 years 946 1.11%
85 years and over 1,258 1.47%
Exploring Lake Forest's Diversity? Request Customized Data Now!

Lake Forest, CA population by age group

Key stats
24,770
Population under 25 years
24,297
Population aged 25-44
24,884
Population aged 45-64
11,565
Population aged 65+

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

The graph shows Lake Forest'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
Lake Forest, CA population by age group. The largest age group was 50-54 years with a poulation of 7,268 (8.50% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

The largest age group in Lake Forest, CA was for the group of age 50-54 years with a population of 7,268 (8.50%), according to the 2021 American Community Survey.

At the same time, the smallest age group in Lake Forest, CA was the 80-84 years with a population of 946 (1.11%).

Lake Forest, CA population by age cohort

To better understand the age distribution of Lake Forest, 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 Lake Forest'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.
Lake Forest, 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 55,687 (65.12% 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 18,264 21.36%
18 to 64 years 55,687 65.12%
85 years and over 11,565 13.52%
Exploring Lake Forest's Diversity? Request Customized Data Now!

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

  • Lake Forest's population under 18 was 21.36%, compared to the 22.51% nationwide.
  • Lake Forest's working population (between 18 and 64) was 65.12%, compared to 61.45% nationwide.
  • Lake Forest's elderly or the senior population (over 65 age) was 13.52% as compared to 16.04% nationwide.

Lake Forest, CA population pyramid

Population pyramid for Lake Forest, 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 Lake Forest's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Lake Forest, CA, is 25.7.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Lake Forest, CA, is 19.7.
  • Total dependency ratio for Lake Forest, CA is 45.4.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Lake Forest, CA is 5.1.
The graph shows Lake Forest'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.
Lake Forest, CA population pyramid i.e. Lake Forest population distrubution across age and gender. Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Here's the Lake Forest, CA's male and female population across different age groups:

Age Group Population(Male) Population(Female) Total Population
Under 5 years 2,872 2,583 5,455
5 to 9 years 2,504 2,369 4,873
10 to 14 years 2,388 2,422 4,810
15 to 19 years 2,524 2,141 4,665
20 to 24 years 2,562 2,405 4,967
25 to 29 years 2,875 3,128 6,003
30 to 34 years 2,844 2,709 5,553
35 to 39 years 3,113 3,219 6,332
40 to 44 years 2,992 3,417 6,409
45 to 49 years 3,318 3,151 6,469
50 to 54 years 3,488 3,780 7,268
55 to 59 years 2,985 2,969 5,954
60 to 64 years 2,445 2,748 5,193
65 to 69 years 1,944 2,091 4,035
70 to 74 years 1,551 1,869 3,420
75 to 79 years 822 1,084 1,906
80 to 84 years 438 508 946
85 years and over 430 828 1,258
Exploring Lake Forest's Diversity? Request Customized Data Now!

Things to know

What is the population of Lake Forest, CA under 18?

Lake Forest's population under the age of 18 is 18,264, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 21.36% of the total resident population of Lake Forest, CA.

What is the aging population in Lake Forest, CA?

Lake Forest's population aged 65 years and above was 11,565. As per the U.S. Census Bureau's American Community Survey, this population is 13.52% of the entire population.

References

Datasets

Explore datasets by year of publication.
2023
Lake Forest, CA Age Group Population Dataset: A complete breakdown of Lake Forest 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 Lake Forest 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 Lake Forest. The dataset can be utilized to understand the population distribution of Lake Forest by age. For example, using this dataset, we can identify the largest age group in Lake Forest.

Key observations

The largest age group in Lake Forest, CA was for the group of age 50-54 years with a population of 7,268 (8.50%), according to the 2021 American Community Survey. At the same time, the smallest age group in Lake Forest, CA was the 80-84 years with a population of 946 (1.11%). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

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

Lake Forest, CA Age Cohorts Dataset: Children, Working Adults, and Seniors in Lake Forest - 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 Lake Forest 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 Lake Forest. 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.

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

Lake Forest, 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 Lake Forest, CA population pyramid, which represents the Lake Forest 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 Lake Forest, CA, is 25.7.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Lake Forest, CA, is 19.7.
  • Total dependency ratio for Lake Forest, CA is 45.4.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Lake Forest, CA is 5.1.

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

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.

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.