Marion County, OR population between 2000 and 2023
Over the last 20 plus years, between 2000 and 2023, population of Marion County increased by 61,135. In this period, the peak population was 347,851 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 | 285,606 | - | - |
| 2001 | 288,907 | 3,301 | 1.16% |
| 2002 | 293,853 | 4,946 | 1.71% |
| 2003 | 297,187 | 3,334 | 1.13% |
| 2004 | 299,561 | 2,374 | 0.80% |
| 2005 | 302,500 | 2,939 | 0.98% |
| 2006 | 306,940 | 4,440 | 1.47% |
| 2007 | 311,211 | 4,271 | 1.39% |
| 2008 | 314,616 | 3,405 | 1.09% |
| 2009 | 318,780 | 4,164 | 1.32% |
| 2010 | 315,948 | -2,832 | -0.89% |
| 2011 | 318,053 | 2,105 | 0.67% |
| 2012 | 319,865 | 1,812 | 0.57% |
| 2013 | 321,491 | 1,626 | 0.51% |
| 2014 | 324,473 | 2,982 | 0.93% |
| 2015 | 329,106 | 4,633 | 1.43% |
| 2016 | 335,592 | 6,486 | 1.97% |
| 2017 | 340,846 | 5,254 | 1.57% |
| 2018 | 345,512 | 4,666 | 1.37% |
| 2019 | 347,557 | 2,045 | 0.59% |
| 2020 | 346,350 | -1,207 | -0.35% |
| 2021 | 347,851 | 1,501 | 0.43% |
| 2022 | 346,719 | -1,132 | -0.33% |
| 2023 | 346,741 | 22 | 0.01% |
TABLE OF CONTENTS
Marion County, OR population from 2000 to 2023
From 2000 to 2010, Marion County's population increased by 30,342 (10.62%), 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, Marion County's population increased by 30,402 (9.62%), 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, Marion County's population increased by 391 (0.11%).For the same period, the rate of growth for the United States was 1.02%.
FIGURE 1
Marion County's population from 2000 to 2023.
The estimated population at the end of 2023 was 346,741.
Between the year 2000 and 2023, Marion County's population peaked in year 2021 at 347,851.
Between the year 2000 and 2023, Marion County's population was lowest in year 2000 at 285,606.
Marion County, OR annual population growth rate
Between the years 2000 and 2023, i.e. 23 annual cycles, the population of Marion County grew year by year for 20 years and declined for 3 years.
From 2000 to 2023, Marion County had an average annual population growth rate of 0.93% per year. Overall the population grew 21.41% between 2000 and 2023.
FIGURE 2
Marion County annual population growth rate
The average annual growth rate from 2000 to 2023 was 0.93% per year.
From 2015 to 2016 Marion County population grew the most, with an increase of 6,486 people (a 1.97% year-on-year increase)..
From 2009 to 2010 Marion County population experienced the most significant decrease, with a decline of 2,832 people (a 0.89% year-on-year decline).
Things to know
Is Marion County, OR population increasing or decreasing?
According to the latest data from U.S. Census Bureau's population estimates, Marion County's population decreased by 1,110 between 2021 and 2023. The decrease was 1,132 (increased) between 2021 and 2022; and increase of 22 (0.01%) between 2022 and 2023.
How has the population of Marion County, OR changed in the last 10 years?
Between 2013 and 2023, population of Marion County increased by 25,250 (7.85%). The population was highest at 347,851 in the year 2021 and lowest at 324,473 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)