Washington County, OR population between 2000 and 2023
Over the last 20 plus years, between 2000 and 2023, population of Washington County increased by 150,491. In this period, the peak population was 602,453 in the year 2021. 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 | 448,374 | - | - |
| 2001 | 462,563 | 14,189 | 3.16% |
| 2002 | 472,063 | 9,500 | 2.05% |
| 2003 | 479,420 | 7,357 | 1.56% |
| 2004 | 486,904 | 7,484 | 1.56% |
| 2005 | 499,173 | 12,269 | 2.52% |
| 2006 | 512,348 | 13,175 | 2.64% |
| 2007 | 520,486 | 8,138 | 1.59% |
| 2008 | 529,216 | 8,730 | 1.68% |
| 2009 | 539,623 | 10,407 | 1.97% |
| 2010 | 531,652 | -7,971 | -1.48% |
| 2011 | 541,041 | 9,389 | 1.77% |
| 2012 | 548,651 | 7,610 | 1.41% |
| 2013 | 555,443 | 6,792 | 1.24% |
| 2014 | 562,552 | 7,109 | 1.28% |
| 2015 | 572,955 | 10,403 | 1.85% |
| 2016 | 585,358 | 12,403 | 2.16% |
| 2017 | 591,969 | 6,611 | 1.13% |
| 2018 | 597,030 | 5,061 | 0.85% |
| 2019 | 600,933 | 3,903 | 0.65% |
| 2020 | 601,130 | 197 | 0.03% |
| 2021 | 602,453 | 1,323 | 0.22% |
| 2022 | 600,086 | -2,367 | -0.39% |
| 2023 | 598,865 | -1,221 | -0.20% |
TABLE OF CONTENTS
Washington County, OR population from 2000 to 2023
From 2000 to 2010, Washington County's population increased by 83,278 (18.57%), 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, Washington County's population increased by 69,478 (13.07%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.18% .
After the COVID19 pandemic and, between the year 2020 and 2023, Washington County's population decreased by 2,265 (0.38%).For the same period, the rate of growth for the United States was 1.02%.
FIGURE 1
Washington County's population from 2000 to 2023.
The estimated population at the end of 2023 was 598,865.
Between the year 2000 and 2023, Washington County's population peaked in year 2021 at 602,453.
Between the year 2000 and 2023, Washington County's population was lowest in year 2000 at 448,374.
Washington County, OR annual population growth rate
Between the years 2000 and 2023, i.e. 23 annual cycles, the population of Washington County grew year by year for 20 years and declined for 3 years.
From 2000 to 2023, Washington County had an average annual population growth rate of 1.46% per year. Overall the population grew 33.56% between 2000 and 2023.
FIGURE 2
Washington County annual population growth rate
The average annual growth rate from 2000 to 2023 was 1.46% per year.
From 2000 to 2001 Washington County population grew the most, with an increase of 14,189 people (a 3.16% year-on-year increase)..
From 2009 to 2010 Washington County population experienced the most significant decrease, with a decline of 7,971 people (a 1.48% year-on-year decline).
Things to know
Is Washington County, OR population increasing or decreasing?
According to the latest data from U.S. Census Bureau's population estimates, Washington County's population decreased by 3,588 between 2021 and 2023. The decrease was 2,367 (increased) between 2021 and 2022; and decrease of 1,221 (0.20%) between 2022 and 2023.
How has the population of Washington County, OR changed in the last 10 years?
Between 2013 and 2023, population of Washington County increased by 43,422 (7.82%). The population was highest at 602,453 in the year 2021 and lowest at 562,552 in the year 2014. Overall the average growth rate witnessed for the last 10 years was 0.76%.
References
- US Census Bureau Population Estimates Population Estimates Program (PEP)