Snohomish County, WA Population by Year

In 2022, the population of Snohomish County was 840,079, a 0.48% increase year-by-year from 2021. Previously, in 2021, Snohomish County's population was 836,037, an increase of 0.74% compared to a population of 829,869 in 2020.
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Updated Sep 18, 2023

Snohomish County, WA population between 2000 and 2022

Over the last 20 plus years, between 2000 and 2022, population of Snohomish County increased by 230,986. In this period, the peak population was 840,079 in the year 2022. The numbers suggest that the population has not reached its peak yet and is showing a trend of further growth.

Year Population Year on Year Change Change in Percent
2000 609,093 - -
2001 621,730 12,637 2.07%
2002 630,229 8,499 1.37%
2003 633,572 3,343 0.53%
2004 640,774 7,202 1.14%
2005 651,325 10,551 1.65%
2006 666,223 14,898 2.29%
2007 678,585 12,362 1.86%
2008 688,145 9,560 1.41%
2009 698,882 10,737 1.56%
2010 715,522 16,640 2.38%
2011 722,149 6,627 0.93%
2012 732,239 10,090 1.4%
2013 744,322 12,083 1.65%
2014 757,485 13,163 1.77%
2015 770,022 12,537 1.66%
2016 787,886 17,864 2.32%
2017 803,061 15,175 1.93%
2018 814,107 11,046 1.38%
2019 822,413 8,306 1.02%
2020 829,869 7,456 0.91%
2021 836,037 6,168 0.74%
2022 840,079 4,042 0.48%
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Snohomish County, WA population from 2000 to 2022

From 2000 to 2010, Snohomish County's population increased by 106,429 (17.47%), 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, Snohomish County's population increased by 114,347 (15.98%), 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 Snohomish County's population from 2000 to 2022, with years on x-axis and population on y-axis
Snohomish County's population from 2000 to 2022. The estimated population at the end of 2022 was 840,079. Source: U.S. Census Bureau (Population Estimates Program)

Between the year 2000 and 2022, Snohomish County's population peaked in year 2022 at 840,079.

Between the year 2000 and 2022, Snohomish County's population was lowest in year 2000 at 609,093.

Snohomish County, WA annual population growth rate

Between the years 2000 and 2022, i.e. 22 annual cycles, the population of Snohomish County grew year by year for 22 years and declined for 0 years.

From 2000 to 2022, Snohomish County had an average annual population growth rate of 1.72% per year. Overall the population grew 37.92% between 2000 and 2022.

The graph shows Snohomish County's annual population change from 2000 to 2022, with years on x-axis and population annual growth on y-axis
Snohomish County's annual population change from 2000 to 2022. The average annual growth rate from 2000 to 2022 was 1.72% per year. In the last two years, the population grew by 10,210. Source: U.S. Census Bureau (Population Estimates Program)

From 2015 to 2016, Snohomish County's population grew the most with an increase of 17,864 (2.32%).

While from 2002 and 2003, Snohomish County's population grew the least with a growth of 3,343 (0.53%).

Things to know

Is Snohomish County, WA population increasing or decreasing?

According to the latest data from U.S. Census Bureau's population estimates, Snohomish County's population increased by 10,210 between 2020 and 2022. The increase was 6,168 (0.74%) between 2020 and 2021; and increase of 4,042 (0.48%) between 2021 and 2022.

How has the population of Snohomish County, WA changed in the last 10 years?

Between 2012 and 2022, population of Snohomish County increased by 95,757 (12.86%). The population was highest at 840,079 in the year 2022 and lowest at 744,322 in the year 2013. Overall the average growth rate witnessed for the last 10 years was 1.38%.

References

Datasets

Explore datasets by year of publication.
2023
Snohomish County, WA 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 Snohomish 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 Snohomish 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 Snohomish County was 840,079, a 0.48% increase year-by-year from 2021. Previously, in 2021, Snohomish County population was 836,037, an increase of 0.74% compared to a population of 829,869 in 2020. Over the last 20 plus years, between 2000 and 2022, population of Snohomish County increased by 230,986. In this period, the peak population was 840,079 in the year 2022. The numbers suggest that the population has not reached its peak yet and is showing a trend of further growth. Source: U.S. Census Bureau Population Estimates Program (PEP).

Snohomish 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 Snohomish County is shown in this column.
  • Year on Year Change: This column displays the change in Snohomish 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 Snohomish 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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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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