About this dataset

Context

The dataset tabulates the California 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 California 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 2024, the population of California was 39.43 million, a 0.59% increase year-by-year from 2023. Previously, in 2023, California population was 39.2 million, an increase of 0.14% compared to a population of 39.14 million in 2022. Over the last 20 plus years, between 2000 and 2024, population of California increased by 5.44 million. In this period, the peak population was 39.52 million in the year 2020. 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 2024

Variables / Data Columns

• Year: This column displays the data year (Measured annually and for years 2000 to 2024)
• Population: The population for the specific year for the California is shown in this column.
• Year on Year Change: This column displays the change in California 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 California Population by Year. You can refer the same here

Chart and table of population level and growth rate for the state of California from 1900 to 2024.

The dashboard data is derived from the California Department of Finance Demographic Research Unit's published E-5 Annual Report showing the changes in population and housing across California from the state, county, and city level from April 1, 2020 to January 1, 2025. These estimates observe 58 counties, 483 cities, and 57 unincorporated county areas. The purpose of this dashboard is to provide interactive analysis with data visualizations to complement the E-5 report released annually on May 1st.Please note, the changes from 2020 to 2021 reflect a nine-month change, not an annual change, as these estimates begin from the decennial census on April 1, 2020. Subsequent years' estimates reflect annual changes starting on January 1st.DISCLAIMER: This dashboard does not include wildfire population and housing loss data from the 2025 Los Angeles County fires.Dashboard User Tips - This dashboard is best viewed at 1600 X 900 screen size. - To adjust the screen extent, press "CTRL" and "+/-" - Filter the data using the left side widgets for County and/or City. - Additionally, filter the featured data for Year on the right side of the dashboard. For more information on this report and others, visit the Forecasting webpages:
Demographic Research Unit Estimates | Department of Finance DRU DHUB Sources: Data used in estimation models come from administrative records of several state and federal government departments and agencies, and from the local jurisdictions for which Finance produces population estimates. Because timeliness and coverage in these series vary, corrections, smoothing, and other adjustments may be applied. Changes to 2020 P.L. 94-171 data in the classification of student housing on or near campus was necessary to remain consistent with the census group quarters definition. In only a few instances, some student housing (residence hall and apartment units) counted as household population in the census was redefined as group quarters student housing population. College dorm group quarters population is defined as student population living in residence halls and apartment units located on or near college campuses. Suggested Citation State of California, Department of Finance, California Population and Housing Estimates Dashboard from 2020 to 2025 — January 1, 2021-2025. Sacramento, California, May 2025.

Resident Population in California was 39431.26300 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in California reached a record high of 39521.95800 in January of 2020 and a record low of 1490.00000 in January of 1900. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in California - last updated from the United States Federal Reserve on July of 2025.

About this dataset

Context

This list ranks the 55 counties in the California by Non-Hispanic Black or African American population, as estimated by the United States Census Bureau. It also highlights population changes in each counties over the past five years.

Content

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

• 2019-2023 American Community Survey 5-Year Estimates
• 2018-2022 American Community Survey 5-Year Estimates
• 2017-2021 American Community Survey 5-Year Estimates
• 2016-2020 American Community Survey 5-Year Estimates
• 2015-2019 American Community Survey 5-Year Estimates

Variables / Data Columns

• Rank by Non-Hispanic Black Population: This column displays the rank of counties in the California by their Non-Hispanic Black or African American population, using the most recent ACS data available.
• counties: The counties for which the rank is shown in the previous column.
• Non-Hispanic Black Population: The Non-Hispanic Black population of the counties is shown in this column.
• % of Total counties Population: This shows what percentage of the total counties population identifies as Non-Hispanic Black. Please note that the sum of all percentages may not equal one due to rounding of values.
• % of Total California Non-Hispanic Black Population: This tells us how much of the entire California Non-Hispanic Black population lives in that counties. Please note that the sum of all percentages may not equal one due to rounding of values.
• 5 Year Rank Trend: TThis column displays the rank trend across the last 5 years.

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/.

Resident Population in Los Angeles County, CA was 9757.17900 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Los Angeles County, CA reached a record high of 10094.86500 in January of 2016 and a record low of 7040.40000 in January of 1973. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Los Angeles County, CA - last updated from the United States Federal Reserve on July of 2025.

1. Zip code boundaries change, in ways small and large - these are not a stable analysis unit. Data you received keyed to zip codes may have used an earlier and very different boundary for your zip codes of interest.
2. Historically, the United States Postal Service has not published zip code boundaries, and instead, boundary datasets are compiled by third party vendors from address data. That means that the boundary data are not authoritative, and any data you have keyed to zip codes may use a different, vendor-specific method for generating boundaries from the data here.
3. Zip codes are designed to optimize mail delivery, not social, environmental, or demographic characteristics. Analysis using zip codes is subject to create issues with the Modifiable Areal Unit Problem that will bias any results because your units of analysis aren't designed for the data being studied.

This is the last boundary change until the next redistricting following the 2030 Census. All of the districts now reflect the 2021 Citizens Redistricting Commission(CRC) plan. The only thing that will change is the members' names and parties as elections are held, appointments are made, or party affiliations change.Senate Districts feature layer is updated as-needed and we expect to update it more regularly in the future.Schema:F2020_POP: The 2020 population of the district as reported by the census.F2020_HU: Number of housing units in the district in 2020 as reported by the census.CRC_POP: Citizen's Redistricting Commission population.District: The District is the district number.Party: The Party is the party represented.last_name: The last name is the last name of the representative.first_name: The first name is the first name of the representative.district_website: The district website is the link to the district website.For more information about the F2020_Pop and the F2020_HU visit: https://www.census.gov/programs-surveys/decennial-census/about/rdo/summary-files.html

Graph and download economic data for All Employees: Government: Local Government in California (SMU06000009093000001) from Jan 1990 to May 2025 about local govt, CA, government, employment, and USA.

Estimate, Median Age by Sex, Total Population (5-year estimate) in Los Angeles County, CA was 37.90000 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 Los Angeles County, CA reached a record high of 37.90000 in January of 2023 and a record low of 33.80000 in January of 2009. 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 Los Angeles County, CA - last updated from the United States Federal Reserve on July of 2025.

Resident Population in Redding, CA (MSA) was 181.12100 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Redding, CA (MSA) reached a record high of 182.24300 in January of 2021 and a record low of 163.78200 in January of 2000. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Redding, CA (MSA) - last updated from the United States Federal Reserve on May of 2025.

This dataset contains counts of live births for California counties based on information entered on birth certificates. Final counts are derived from static data and include out of state births to California residents, whereas provisional counts are derived from incomplete and dynamic data. Provisional counts are based on the records available when the data was retrieved and may not represent all births that occurred during the time period.

The final data tables include both births that occurred in California regardless of the place of residence (by occurrence) and births to California residents (by residence), whereas the provisional data table only includes births that occurred in California regardless of the place of residence (by occurrence). The data are reported as totals, as well as stratified by parent giving birth's age, parent giving birth's race-ethnicity, and birth place type. See temporal coverage for more information on which strata are available for which years.

As of February 1, 2025, California was the state with the most Target stores in the United States, with *** stores. The company had a total of ***** stores open throughout the United States that year.

Population Estimate, Total, Hispanic or Latino (5-year estimate) in Orange County, CA was 1080480.00000 Persons in January of 2023, according to the United States Federal Reserve. Historically, Population Estimate, Total, Hispanic or Latino (5-year estimate) in Orange County, CA reached a record high of 1083093.00000 in January of 2021 and a record low of 973899.00000 in January of 2010. 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 Orange County, CA - last updated from the United States Federal Reserve on July of 2025.

Estimated number of persons by quarter of a year and by year, Canada, provinces and territories.

Resident Population in Fresno County, CA was 1024.12500 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Fresno County, CA reached a record high of 1024.12500 in January of 2024 and a record low of 413.32900 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Fresno County, CA - last updated from the United States Federal Reserve on July of 2025.

Comprehensive dataset of 3 Institute of Geography and Statistics in California, United States as of June, 2025. Includes verified contact information (email, phone), geocoded addresses, customer ratings, reviews, business categories, and operational details. Perfect for market research, lead generation, competitive analysis, and business intelligence. Download a complimentary sample to evaluate data quality and completeness.

The number of inhabitants living in Baja California Sur amounted to over 840,000 in 2022, having overall continuously increased since 2008, when approximately 611,100 people lived there. The state of Baja California Sur is one of the least populated regions in Mexico.

As of February 2025, 19 U.S. states had consumer privacy laws signed. California was the first state to develop a privacy bill in 2018. Since then, more states have come up with state-level laws dedicated to the protection of consumer data. A few of the signed laws are yet to become effective in 2025 or in 2026.

Resident Population in Humboldt County, CA was 132.38000 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Humboldt County, CA reached a record high of 136.71000 in January of 2017 and a record low of 99.69200 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Humboldt County, CA - last updated from the United States Federal Reserve on July of 2025.