Alameda County, CA Population by Year

In 2022, the population of Alameda County was 1,628,997, a 0.90% decrease year-by-year from 2021. Previously, in 2021, Alameda County's population was 1,643,837, a decline of 2.17% compared to a population of 1,680,380 in 2020.
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Updated Sep 18, 2023

Alameda County, CA population between 2000 and 2022

Over the last 20 plus years, between 2000 and 2022, population of Alameda County increased by 178,911. In this period, the peak population was 1,680,380 in the year 2020. The numbers suggest that the population has already reached its peak and is showing a trend of decline.

Year Population Year on Year Change Change in Percent
2000 1,450,086 - -
2001 1,469,963 19,877 1.37%
2002 1,462,884 -7,079 -0.48%
2003 1,455,088 -7,796 -0.53%
2004 1,446,681 -8,407 -0.58%
2005 1,442,383 -4,298 -0.3%
2006 1,444,546 2,163 0.15%
2007 1,455,244 10,698 0.74%
2008 1,476,219 20,975 1.44%
2009 1,497,060 20,841 1.41%
2010 1,512,997 15,937 1.06%
2011 1,530,893 17,896 1.18%
2012 1,553,729 22,836 1.49%
2013 1,579,508 25,779 1.66%
2014 1,607,638 28,130 1.78%
2015 1,634,326 26,688 1.66%
2016 1,650,765 16,439 1.01%
2017 1,659,824 9,059 0.55%
2018 1,666,596 6,772 0.41%
2019 1,668,412 1,816 0.11%
2020 1,680,380 11,968 0.72%
2021 1,643,837 -36,543 -2.17%
2022 1,628,997 -14,840 -0.9%
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Alameda County, CA population from 2000 to 2022

From 2000 to 2010, Alameda County's population increased by 62,911 (4.34%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 9.63%.

From 2010 to 2020, Alameda County's population increased by 167,383 (11.06%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.

The graph shows Alameda County's population from 2000 to 2022, with years on x-axis and population on y-axis
Alameda County's population from 2000 to 2022. The estimated population at the end of 2022 was 1,628,997. Source: U.S. Census Bureau (Population Estimates Program)

Between the year 2000 and 2022, Alameda County's population peaked in year 2020 at 1,680,380.

Between the year 2000 and 2022, Alameda County's population was lowest in year 2005 at 1,442,383.

Alameda County, CA annual population growth rate

Between the years 2000 and 2022, i.e. 22 annual cycles, the population of Alameda County grew year by year for 16 years and declined for 6 years.

From 2000 to 2022, Alameda County had an average annual population growth rate of 0.56% per year. Overall the population grew 12.34% between 2000 and 2022.

The graph shows Alameda County's annual population change from 2000 to 2022, with years on x-axis and population annual growth on y-axis
Alameda County's annual population change from 2000 to 2022. The average annual growth rate from 2000 to 2022 was 0.56% per year. In the last two years, the population declined by 51,383. Source: U.S. Census Bureau (Population Estimates Program)

From 2013 to 2014, Alameda County's population grew the most with an increase of 28,130 (1.78%).

While from 2020 and 2021, Alameda County's population declined the most with a negative growth of 36,543 (-2.17%).

Things to know

Is Alameda County, CA population increasing or decreasing?

According to the latest data from U.S. Census Bureau's population estimates, Alameda County's population decreased by 51,383 between 2020 and 2022. The decrease was 36,543 (2.17%) between 2020 and 2021; and decrease of 14,840 (0.90%) between 2021 and 2022.

How has the population of Alameda County, CA changed in the last 10 years?

Between 2012 and 2022, population of Alameda County increased by 49,489 (3.13%). The population was highest at 1,680,380 in the year 2020 and lowest at 1,579,508 in the year 2013. Overall the average growth rate witnessed for the last 10 years was 0.48%.

References

Datasets

Explore datasets by year of publication.
2023
Alameda County, CA Population Dataset: Yearly Figures, Population Change, and Percent Change Analysis
Last updated September 18, 2023
ACS
Free
Neilsberg
CSV, JSON
2017-2021
CC BY 4.0
About this dataset

Context

The dataset tabulates the Alameda 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 Alameda 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 2022, the population of Alameda County was 1,628,997, a 0.90% decrease year-by-year from 2021. Previously, in 2021, Alameda County population was 1,643,837, a decline of 2.17% compared to a population of 1,680,380 in 2020. Over the last 20 plus years, between 2000 and 2022, population of Alameda County increased by 178,911. In this period, the peak population was 1,680,380 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).

Alameda County population by year

Content

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

Data Coverage:

  • From 2000 to 2022

Variables / Data Columns

  • Year: This column displays the data year (Measured annually and for years 2000 to 2022)
  • Population: The population for the specific year for the Alameda County is shown in this column.
  • Year on Year Change: This column displays the change in Alameda 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 Alameda County Population by Year. 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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