Marion County, IL population between 2000 and 2023
Over the last 20 plus years, between 2000 and 2023, population of Marion County decreased by 5,004. In this period, the peak population was 41,677 in the year 2000. 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 | 41,677 | - | - |
| 2001 | 41,387 | -290 | -0.70% |
| 2002 | 40,949 | -438 | -1.06% |
| 2003 | 40,564 | -385 | -0.94% |
| 2004 | 40,175 | -389 | -0.96% |
| 2005 | 39,869 | -306 | -0.76% |
| 2006 | 39,931 | 62 | 0.16% |
| 2007 | 39,773 | -158 | -0.40% |
| 2008 | 39,643 | -130 | -0.33% |
| 2009 | 39,287 | -356 | -0.90% |
| 2010 | 39,416 | 129 | 0.33% |
| 2011 | 39,147 | -269 | -0.68% |
| 2012 | 39,018 | -129 | -0.33% |
| 2013 | 38,685 | -333 | -0.85% |
| 2014 | 38,573 | -112 | -0.29% |
| 2015 | 38,381 | -192 | -0.50% |
| 2016 | 38,057 | -324 | -0.84% |
| 2017 | 37,757 | -300 | -0.79% |
| 2018 | 37,453 | -304 | -0.81% |
| 2019 | 37,309 | -144 | -0.38% |
| 2020 | 37,652 | 343 | 0.92% |
| 2021 | 37,379 | -273 | -0.73% |
| 2022 | 36,905 | -474 | -1.27% |
| 2023 | 36,673 | -232 | -0.63% |
TABLE OF CONTENTS
Marion County, IL population from 2000 to 2023
From 2000 to 2010, Marion County's population decreased by 2,261 (5.43%), 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 decreased by 1,764 (4.48%), 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 decreased by 979 (2.60%).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 36,673.
Between the year 2000 and 2023, Marion County's population peaked in year 2000 at 41,677.
Between the year 2000 and 2023, Marion County's population was lowest in year 2023 at 36,673.
Marion County, IL 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 3 years and declined for 20 years.
From 2000 to 2023, Marion County had an average annual population growth rate of 0.52% per year. Overall the population shrank 12.01% between 2000 and 2023.
FIGURE 2
Marion County annual population growth rate
The average annual growth rate from 2000 to 2023 was 0.52% per year.
From 2019 to 2020 Marion County population grew the most, with an increase of 343 people (a 0.92% year-on-year increase)..
From 2021 to 2022 Marion County population experienced the most significant decrease, with a decline of 474 people (a 1.27% year-on-year decline).
Things to know
Is Marion County, IL population increasing or decreasing?
According to the latest data from U.S. Census Bureau's population estimates, Marion County's population decreased by 706 between 2021 and 2023. The decrease was 474 (decreased) between 2021 and 2022; and decrease of 232 (0.63%) between 2022 and 2023.
How has the population of Marion County, IL changed in the last 10 years?
Between 2013 and 2023, population of Marion County decreased by 2,012 (5.20%). The population was highest at 38,573 in the year 2014 and lowest at 36,673 in the year 2023. Overall the average growth rate witnessed for the last 10 years was -0.53%.
References
- US Census Bureau Population Estimates Population Estimates Program (PEP)