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Ventura County, CA Population by Age

The median age in Ventura County, CA is 39.0, as per 2018-2022 ACS 5 -Year Estimates. Of the total population, 18.19% were under the age of 15, 20.11% aged 15 to 29, 45.35% aged 30 to 64, 14.15% aged 65 to 84, and 2.19% were 85 years of age and older.
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By Neilsberg Research
Updated Jul 26, 2024

Ventura County, CA population age distributions

A complete breakdown of Ventura 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 45,664 5.42%
5 to 9 years 50,806 6.03%
10 to 14 years 56,736 6.74%
15 to 19 years 56,858 6.75%
20 to 24 years 55,971 6.65%
25 to 29 years 56,530 6.71%
30 to 34 years 55,034 6.54%
35 to 39 years 53,333 6.33%
40 to 44 years 53,365 6.34%
45 to 49 years 52,697 6.26%
50 to 54 years 55,849 6.63%
55 to 59 years 57,170 6.79%
60 to 64 years 54,400 6.46%
65 to 69 years 44,778 5.32%
70 to 74 years 35,362 4.2%
75 to 79 years 23,497 2.79%
80 to 84 years 15,484 1.84%
85 years and over 18,475 2.19%
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Ventura County, CA population by age group

Key stats
266,035
Population under 25 years
218,262
Population aged 25-44
220,116
Population aged 45-64
137,596
Population aged 65+

Sources: U.S. Census Bureau, American Community Survey (ACS) 2018-2022

FIGURE 1

Ventura County, CA population by age group.

The largest age group is 55 to 59 years with a population of 57,170 (6.79% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.
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The largest age group in Ventura County, CA was for the group of age 55 to 59 years with a population of 57,170 (6.79%), according to the 2018-2022 American Community Survey.

At the same time, the smallest age group in Ventura County, CA was the 80 to 84 years with a population of 15,484 (1.84%).

Ventura County, CA population by age cohort

To better understand the age distribution of Ventura 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

Ventura County, CA population by age cohort

The largest age group was 18 to 64 years with a population of 516,718 (61.37% of the total population).

Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.
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Ventura 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 187,695 22.29%
18 to 64 years 516,718 61.37%
65 years and over 137,596 16.34%
Exploring Ventura County's Diversity? Request Customized Data Now!

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

  • Ventura County 's population under 18 was 22.29%, compared to the 22.11% nationwide.
  • Ventura County's working population (between 18 and 64) was 61.37%, compared to 61.36% nationwide.
  • Ventura County's elderly or the senior population (over 65 age) was 16.34% as compared to 16.53% nationwide.

Ventura County, CA population pyramid

Population pyramid for Ventura 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 Ventura County's population pyramid:

  • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Ventura County, CA, is 27.8.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Ventura County, CA, is 25.0.
  • Total dependency ratio for Ventura County, CA is 52.8.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Ventura County, CA is 4.0.

FIGURE 3

Ventura County, CA population pyramid

Ventura County population distrubution across age and gender. A wide base suggests population increase, narrow base indicates declining birth rates.

Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.
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Ventura County, CA population pyramid

Here's the Ventura County, CA's male and female population across different age groups .

Age Group Population(Male) Population(Female) Total Population
Under 5 years 23,322 22,342 45,664
5 to 9 years 25,880 24,926 50,806
10 to 14 years 28,983 27,753 56,736
15 to 19 years 28,860 27,998 56,858
20 to 24 years 28,591 27,380 55,971
25 to 29 years 29,146 27,384 56,530
30 to 34 years 28,513 26,521 55,034
35 to 39 years 27,398 25,935 53,333
40 to 44 years 26,998 26,367 53,365
45 to 49 years 26,292 26,405 52,697
50 to 54 years 28,170 27,679 55,849
55 to 59 years 29,034 28,136 57,170
60 to 64 years 26,343 28,057 54,400
65 to 69 years 21,412 23,366 44,778
70 to 74 years 16,763 18,599 35,362
75 to 79 years 10,772 12,725 23,497
80 to 84 years 6,617 8,867 15,484
85 years and over 6,711 11,764 18,475
Exploring Ventura County's Diversity? Request Customized Data Now!

Things to know

What is the population of Ventura County, CA under 18?

Ventura County's population under the age of 18 is 187,695, as per the latest U.S. Census Bureau's American Community Survey estimates. This population is 22.29% of the total resident population of Ventura County, CA.

What is the aging population in Ventura County, CA?

Ventura County's population aged 65 years and above was 137,596. As per the U.S. Census Bureau's American Community Survey, this population is 16.34% of the entire population.

References

Datasets

Explore datasets by year of publication.
2024
Ventura County, CA Age Group Population Dataset: A Complete Breakdown of Ventura County Age Demographics from 0 to 85 Years and Over, Distributed Across 18 Age Groups // 2024 Edition
Last updated July 24, 2024
ACS
Free
Neilsberg
CSV, JSON
2018-2022
CC BY 4.0
About this dataset

Context

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

Key observations

The largest age group in Ventura County, CA was for the group of age 55 to 59 years years with a population of 57,170 (6.79%), according to the ACS 2018-2022 5-Year Estimates. At the same time, the smallest age group in Ventura County, CA was the 80 to 84 years years with a population of 15,484 (1.84%). Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 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 Ventura County is shown in this column.
  • % of Total Population: This column displays the population of each age group as a proportion of Ventura County 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 Ventura County Population by Age. You can refer the same here

Ventura County, CA Age Cohorts Dataset: Children, Working Adults, and Seniors in Ventura County - Population and Percentage Analysis // 2024 Edition
Last updated July 24, 2024
ACS
Free
Neilsberg
CSV, JSON
2018-2022
CC BY 4.0
About this dataset

Context

The dataset tabulates the Ventura County 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 Ventura County. 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 18 to 64 years with a poulation of 516,718 (61.37% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2018-2022 5-Year Estimates.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 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 Ventura County population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
  • Population: The population for the age cohort in Ventura County is shown in the following column.
  • Percent of Total Population: The population as a percent of total population of the Ventura County 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 Ventura County Population by Age. You can refer the same here

Ventura County, CA Population Pyramid Dataset: Age Groups, Male and Female Population, and Total Population for Demographics Analysis // 2024 Edition
Last updated July 24, 2024
ACS
Free
Neilsberg
CSV, JSON
2018-2022
CC BY 4.0
About this dataset

Context

The dataset tabulates the data for the Ventura County, CA population pyramid, which represents the Ventura County population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 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 Ventura County, CA, is 27.8.
  • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Ventura County, CA, is 25.0.
  • Total dependency ratio for Ventura County, CA is 52.8.
  • Potential support ratio, which is the number of youth (working age population) per elderly, for Ventura County, CA is 4.0.
Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2018-2022 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 Ventura County population analysis. Total expected values are 18 and are define above in the age groups section.
  • Population (Male): The male population in the Ventura County for the selected age group is shown in the following column.
  • Population (Female): The female population in the Ventura County for the selected age group is shown in the following column.
  • Total Population: The total population of the Ventura County 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 Ventura County 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.

Explore related topics

Ventura County, CA Demographics Ventura County, CA Population

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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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Collection 5 Resources