About this dataset

Context

The dataset tabulates the Ventura County population over the last 20 plus years. It lists the population for each year, along with the year on year change in population, as well as the change in percentage terms for each year. The dataset can be utilized to understand the population change of Ventura County across the last two decades. For example, using this dataset, we can identify if the population is declining or increasing. If there is a change, when the population peaked, or if it is still growing and has not reached its peak. We can also compare the trend with the overall trend of United States population over the same period of time.

Key observations

In 2023, the population of Ventura County was 829,590, a 0.39% decrease year-by-year from 2022. Previously, in 2022, Ventura County population was 832,871, a decline of 0.79% compared to a population of 839,471 in 2021. Over the last 20 plus years, between 2000 and 2023, population of Ventura County increased by 73,206. In this period, the peak population was 848,264 in the year 2017. The numbers suggest that the population has already reached its peak and is showing a trend of decline. Source: U.S. Census Bureau Population Estimates Program (PEP).

Content

When available, the data consists of estimates from the U.S. Census Bureau Population Estimates Program (PEP).

Data Coverage:

• From 2000 to 2023

Variables / Data Columns

• Year: This column displays the data year (Measured annually and for years 2000 to 2023)
• Population: The population for the specific year for the Ventura County is shown in this column.
• Year on Year Change: This column displays the change in Ventura County population for each year compared to the previous year.
• Change in Percent: This column displays the year on year change as a percentage. 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 Year. You can refer the same here

Graph and download economic data for Resident Population in Ventura County, CA (CAVENT2POP) from 1970 to 2024 about Ventura County, CA; Oxnard; residents; CA; population; and USA.

Graph and download economic data for Population Estimate, Total, Not Hispanic or Latino (5-year estimate) in Ventura County, CA (B03002002E006111) from 2009 to 2023 about Ventura County, CA; Oxnard; CA; non-hispanic; estimate; persons; 5-year; population; and USA.

Graph and download economic data for Equifax Subprime Credit Population for Ventura County, CA (EQFXSUBPRIME006111) from Q2 2014 to Q2 2025 about Ventura County, CA; Oxnard; subprime; CA; population; and USA.

About this dataset

Context

The dataset tabulates the Ventura County population by race and ethnicity. The dataset can be utilized to understand the racial distribution of Ventura County.

Content

The dataset will have the following datasets when applicable

Please note that in case when either of Hispanic or Non-Hispanic population doesnt exist, the respective dataset will not be available (as there will not be a population subset applicable for the same)

• Ventura County, CA Population Breakdown by Race
• Ventura County, CA Non-Hispanic Population Breakdown by Race
• Ventura County, CA Hispanic or Latino Population Distribution by Their Ancestries

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/.

About this dataset

Context

The dataset tabulates the Ventura County population by gender and age. The dataset can be utilized to understand the gender distribution and demographics of Ventura County.

Content

The dataset constitues the following two datasets across these two themes

• Ventura County, CA Population Breakdown by Gender
• Ventura County, CA Population Breakdown by Gender and Age

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/.

Graph and download economic data for Estimate, Median Age by Sex, Total Population (5-year estimate) in Ventura County, CA (B01002001E006111) from 2009 to 2023 about Ventura County, CA; Oxnard; age; CA; 5-year; median; and USA.

About this dataset

Context

The dataset tabulates the population of San Buenaventura (Ventura) by gender across 18 age groups. It lists the male and female population in each age group along with the gender ratio for San Buenaventura (Ventura). The dataset can be utilized to understand the population distribution of San Buenaventura (Ventura) by gender and age. For example, using this dataset, we can identify the largest age group for both Men and Women in San Buenaventura (Ventura). Additionally, it can be used to see how the gender ratio changes from birth to senior most age group and male to female ratio across each age group for San Buenaventura (Ventura).

Key observations

Largest age group (population): Male # 60-64 years (4,410) | Female # 60-64 years (3,966). 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

Scope of gender :

Please note that American Community Survey asks a question about the respondents current sex, but not about gender, sexual orientation, or sex at birth. The question is intended to capture data for biological sex, not gender. Respondents are supposed to respond with the answer as either of Male or Female. Our research and this dataset mirrors the data reported as Male and Female for gender distribution analysis.

Variables / Data Columns

• Age Group: This column displays the age group for the San Buenaventura (Ventura) population analysis. Total expected values are 18 and are define above in the age groups section.
• Population (Male): The male population in the San Buenaventura (Ventura) is shown in the following column.
• Population (Female): The female population in the San Buenaventura (Ventura) is shown in the following column.
• Gender Ratio: Also known as the sex ratio, this column displays the number of males per 100 females in San Buenaventura (Ventura) for each age group.

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 Buenaventura (Ventura) Population by Gender. You can refer the same here

Graph and download economic data for Population Estimate, Total, Not Hispanic or Latino, Two or More Races (5-year estimate) in Ventura County, CA (B03002009E006111) from 2009 to 2023 about Ventura County, CA; Oxnard; non-hispanic; estimate; CA; persons; 5-year; population; and USA.

About this dataset

Context

The dataset tabulates the population of Ventura County by race. It includes the population of Ventura County across racial categories (excluding ethnicity) as identified by the Census Bureau. The dataset can be utilized to understand the population distribution of Ventura County across relevant racial categories.

Key observations

The percent distribution of Ventura County population by race (across all racial categories recognized by the U.S. Census Bureau): 58.59% are white, 1.84% are Black or African American, 1.46% are American Indian and Alaska Native, 7.22% are Asian, 0.19% are Native Hawaiian and other Pacific Islander, 9.83% are some other race and 20.86% are multiracial.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Racial categories include:

• White
• Black or African American
• American Indian and Alaska Native
• Asian
• Native Hawaiian and Other Pacific Islander
• Some other race
• Two or more races (multiracial)

Variables / Data Columns

• Race: This column displays the racial categories (excluding ethnicity) for the Ventura County
• Population: The population of the racial category (excluding ethnicity) in the Ventura County is shown in this column.
• % of Total Population: This column displays the percentage distribution of each race 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 Race & Ethnicity. You can refer the same here

Population Estimate, Total, Hispanic or Latino (5-year estimate) in Ventura County, CA was 367516.00000 Persons in January of 2023, according to the United States Federal Reserve. Historically, Population Estimate, Total, Hispanic or Latino (5-year estimate) in Ventura County, CA reached a record high of 367516.00000 in January of 2023 and a record low of 295566.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Hispanic or Latino (5-year estimate) in Ventura County, CA - last updated from the United States Federal Reserve on September of 2025.

Estimate, Median Age by Sex, Total Population (5-year estimate) in Ventura County, CA was 39.40000 Years of Age in January of 2023, according to the United States Federal Reserve. Historically, Estimate, Median Age by Sex, Total Population (5-year estimate) in Ventura County, CA reached a record high of 39.40000 in January of 2023 and a record low of 36.00000 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Estimate, Median Age by Sex, Total Population (5-year estimate) in Ventura County, CA - last updated from the United States Federal Reserve on August of 2025.

Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in Ventura County, CA was 14033.00000 Persons in January of 2023, according to the United States Federal Reserve. Historically, Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in Ventura County, CA reached a record high of 14321.00000 in January of 2020 and a record low of 12905.00000 in January of 2011. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in Ventura County, CA - last updated from the United States Federal Reserve on September of 2025.

Population Estimate, Total, Not Hispanic or Latino, Asian Alone (5-year estimate) in Ventura County, CA was 59234.00000 Persons in January of 2023, according to the United States Federal Reserve. Historically, Population Estimate, Total, Not Hispanic or Latino, Asian Alone (5-year estimate) in Ventura County, CA reached a record high of 60710.00000 in January of 2019 and a record low of 50602.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Not Hispanic or Latino, Asian Alone (5-year estimate) in Ventura County, CA - last updated from the United States Federal Reserve on September of 2025.

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 57,014 (6.80%), according to the ACS 2019-2023 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 16,202 (1.93%). Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 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

U.S. Census Bureau QuickFacts statistics for Ventura County, California. QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

Resident Population in Oxnard-Thousand Oaks-Ventura, CA (MSA) was 835.42700 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Oxnard-Thousand Oaks-Ventura, CA (MSA) reached a record high of 848.26400 in January of 2017 and a record low of 756.36600 in January of 2000. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Oxnard-Thousand Oaks-Ventura, CA (MSA) - last updated from the United States Federal Reserve on July of 2025.

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 511,149 (60.98% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

Content

When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 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

Graph and download economic data for Resident Population in Oxnard-Thousand Oaks-Ventura, CA (MSA) (VENPOP) from 2000 to 2024 about Oxnard, residents, CA, population, and USA.

The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from California Current Ecosystem (CCE) contains number of farms measurements in number units and were aggregated to a yearly timescale.