Illinois population between 2000 and 2024
Over the last 20 plus years, between 2000 and 2024, population of Illinois increased by 272,590. In this period, the peak population was 12.9 million in the year 2009. 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 | 12,437,568 | - | - |
| 2001 | 12,506,337 | 68,769 | 0.55% |
| 2002 | 12,557,394 | 51,057 | 0.41% |
| 2003 | 12,601,488 | 44,094 | 0.35% |
| 2004 | 12,646,958 | 45,470 | 0.36% |
| 2005 | 12,677,482 | 30,524 | 0.24% |
| 2006 | 12,719,564 | 42,082 | 0.33% |
| 2007 | 12,781,623 | 62,059 | 0.49% |
| 2008 | 12,840,720 | 59,097 | 0.46% |
| 2009 | 12,897,476 | 56,756 | 0.44% |
| 2010 | 12,840,545 | -56,931 | -0.44% |
| 2011 | 12,867,783 | 27,238 | 0.21% |
| 2012 | 12,883,029 | 15,246 | 0.12% |
| 2013 | 12,895,778 | 12,749 | 0.10% |
| 2014 | 12,885,092 | -10,686 | -0.08% |
| 2015 | 12,859,585 | -25,507 | -0.20% |
| 2016 | 12,821,709 | -37,876 | -0.29% |
| 2017 | 12,779,893 | -41,816 | -0.33% |
| 2018 | 12,724,685 | -55,208 | -0.43% |
| 2019 | 12,667,017 | -57,668 | -0.45% |
| 2020 | 12,790,357 | 123,340 | 0.97% |
| 2021 | 12,690,341 | -100,016 | -0.78% |
| 2022 | 12,582,515 | -107,826 | -0.85% |
| 2023 | 12,549,689 | -32,826 | -0.26% |
TABLE OF CONTENTS
Illinois population from 2000 to 2024
From 2000 to 2010, Illinois's population increased by 402,977 (3.24%), 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, Illinois's population decreased by 41,457 (0.32%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.19% .
After the COVID19 pandemic and, between the year 2020 and 2024, Illinois's population decreased by 88,930 (0.69%).For the same period, the rate of growth for the United States was 2.57%.
FIGURE 1
Illinois's population from 2000 to 2024.
The estimated population at the end of 2024 was 12.71 million.
Between the year 2000 and 2024, Illinois's population peaked in year 2009 at 12.9 million.
Between the year 2000 and 2024, Illinois's population was lowest in year 2000 at 12.44 million.
Illinois annual population growth rate
Between the years 2000 and 2024, i.e. 24 annual cycles, the population of Illinois grew year by year for 15 years and declined for 9 years.
From 2000 to 2024, Illinois had an average annual population growth rate of 0.09% per year. Overall the population grew 2.19% between 2000 and 2024.
FIGURE 2
Illinois annual population growth rate
The average annual growth rate from 2000 to 2024 was 0.09% per year.
From 2019 to 2020 Illinois population grew the most, with an increase of 132,071 people (a 1.04% year-on-year increase)..
From 2020 to 2021 Illinois population experienced the most significant decrease, with a decline of 98,447 people (a 0.77% year-on-year decline).
Things to know
Is Illinois population increasing or decreasing?
According to the latest data from U.S. Census Bureau's population estimates, Illinois's population increased by 88,337 between 2022 and 2024. The increase was 20,438 (decreased) between 2022 and 2023; and increase of 67,899 (0.54%) between 2023 and 2024.
How has the population of Illinois changed in the last 10 years?
Between 2014 and 2024, population of Illinois decreased by 174,934 (1.36%). The population was highest at 12.86 million in the year 2015 and lowest at 12.62 million in the year 2022. Overall the average growth rate witnessed for the last 10 years was -0.14%.
References
- US Census Bureau Population Estimates Population Estimates Program (PEP)
