Peoria County, IL Population by Year

In 2022, the population of Peoria County was 178,383, a 0.77% decrease year-by-year from 2021. Previously, in 2021, Peoria County's population was 179,764, a decline of 0.86% compared to a population of 181,322 in 2020.
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Updated Sep 18, 2023

Peoria County, IL population between 2000 and 2022

Over the last 20 plus years, between 2000 and 2022, population of Peoria County decreased by 4,862. In this period, the peak population was 188,688 in the year 2013. 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 183,245 - -
2001 182,461 -784 -0.43%
2002 182,838 377 0.21%
2003 182,526 -312 -0.17%
2004 182,823 297 0.16%
2005 183,069 246 0.13%
2006 183,595 526 0.29%
2007 184,136 541 0.29%
2008 184,804 668 0.36%
2009 186,801 1,997 1.08%
2010 186,224 -577 -0.31%
2011 186,775 551 0.3%
2012 187,354 579 0.31%
2013 188,688 1,334 0.71%
2014 187,572 -1,116 -0.59%
2015 186,552 -1,020 -0.54%
2016 185,116 -1,436 -0.77%
2017 182,657 -2,459 -1.33%
2018 180,773 -1,884 -1.03%
2019 179,359 -1,414 -0.78%
2020 181,322 1,963 1.09%
2021 179,764 -1,558 -0.86%
2022 178,383 -1,381 -0.77%
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Peoria County, IL population from 2000 to 2022

From 2000 to 2010, Peoria County's population increased by 2,979 (1.63%), 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, Peoria County's population decreased by 4,902 (2.63%), 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 Peoria County's population from 2000 to 2022, with years on x-axis and population on y-axis
Peoria County's population from 2000 to 2022. The estimated population at the end of 2022 was 178,383. Source: U.S. Census Bureau (Population Estimates Program)

Between the year 2000 and 2022, Peoria County's population peaked in year 2013 at 188,688.

Between the year 2000 and 2022, Peoria County's population was lowest in year 2022 at 178,383.

Peoria County, IL annual population growth rate

Between the years 2000 and 2022, i.e. 22 annual cycles, the population of Peoria County grew year by year for 11 years and declined for 11 years.

From 2000 to 2022, Peoria County had an average annual population growth rate of -0.12% per year. Overall the population shrank 2.65% between 2000 and 2022.

The graph shows Peoria County's annual population change from 2000 to 2022, with years on x-axis and population annual growth on y-axis
Peoria County's annual population change from 2000 to 2022. The average annual growth rate from 2000 to 2022 was -0.12% per year. In the last two years, the population declined by 2,939. Source: U.S. Census Bureau (Population Estimates Program)

From 2008 to 2009, Peoria County's population grew the most with an increase of 1,997 (1.08%).

While from 2016 and 2017, Peoria County's population declined the most with a negative growth of 2,459 (-1.33%).

Things to know

Is Peoria County, IL population increasing or decreasing?

According to the latest data from U.S. Census Bureau's population estimates, Peoria County's population decreased by 2,939 between 2020 and 2022. The decrease was 1,558 (0.86%) between 2020 and 2021; and decrease of 1,381 (0.77%) between 2021 and 2022.

How has the population of Peoria County, IL changed in the last 10 years?

Between 2012 and 2022, population of Peoria County decreased by 10,305 (5.46%). The population was highest at 188,688 in the year 2013 and lowest at 178,383 in the year 2022. Overall the average growth rate witnessed for the last 10 years was -0.49%.

References

Datasets

Explore datasets by year of publication.
2023
Peoria County, IL 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 Peoria 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 Peoria 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 Peoria County was 178,383, a 0.77% decrease year-by-year from 2021. Previously, in 2021, Peoria County population was 179,764, a decline of 0.86% compared to a population of 181,322 in 2020. Over the last 20 plus years, between 2000 and 2022, population of Peoria County decreased by 4,862. In this period, the peak population was 188,688 in the year 2013. The numbers suggest that the population has already reached its peak and is showing a trend of decline. Source: U.S. Census Bureau Population Estimates Program (PEP).

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