Rock Island County, IL Population by Year

In 2022, the population of Rock Island County was 141,527, a 1.02% decrease year-by-year from 2021. Previously, in 2021, Rock Island County's population was 142,992, a decline of 0.95% compared to a population of 144,359 in 2020.
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Updated Sep 18, 2023

Rock Island County, IL population between 2000 and 2022

Over the last 20 plus years, between 2000 and 2022, population of Rock Island County decreased by 7,622. In this period, the peak population was 149,149 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 149,149 - -
2001 148,765 -384 -0.26%
2002 148,321 -444 -0.3%
2003 147,412 -909 -0.61%
2004 147,305 -107 -0.07%
2005 147,054 -251 -0.17%
2006 147,066 12 0.01%
2007 147,817 751 0.51%
2008 147,346 -471 -0.32%
2009 147,331 -15 -0.01%
2010 147,613 282 0.19%
2011 147,474 -139 -0.09%
2012 147,699 225 0.15%
2013 147,686 -13 -0.01%
2014 147,090 -596 -0.4%
2015 146,161 -929 -0.63%
2016 144,977 -1,184 -0.81%
2017 143,824 -1,153 -0.8%
2018 142,522 -1,302 -0.91%
2019 141,775 -747 -0.52%
2020 144,359 2,584 1.82%
2021 142,992 -1,367 -0.95%
2022 141,527 -1,465 -1.02%
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Rock Island County, IL population from 2000 to 2022

From 2000 to 2010, Rock Island County's population decreased by 1,536 (1.03%), 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, Rock Island County's population decreased by 3,254 (2.20%), 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 Rock Island County's population from 2000 to 2022, with years on x-axis and population on y-axis
Rock Island County's population from 2000 to 2022. The estimated population at the end of 2022 was 141,527. Source: U.S. Census Bureau (Population Estimates Program)

Between the year 2000 and 2022, Rock Island County's population peaked in year 2000 at 149,149.

Between the year 2000 and 2022, Rock Island County's population was lowest in year 2022 at 141,527.

Rock Island County, IL annual population growth rate

Between the years 2000 and 2022, i.e. 22 annual cycles, the population of Rock Island County grew year by year for 5 years and declined for 17 years.

From 2000 to 2022, Rock Island County had an average annual population growth rate of -0.23% per year. Overall the population shrank 5.11% between 2000 and 2022.

The graph shows Rock Island County's annual population change from 2000 to 2022, with years on x-axis and population annual growth on y-axis
Rock Island County's annual population change from 2000 to 2022. The average annual growth rate from 2000 to 2022 was -0.23% per year. In the last two years, the population declined by 2,832. Source: U.S. Census Bureau (Population Estimates Program)

From 2019 to 2020, Rock Island County's population grew the most with an increase of 2,584 (1.82%).

While from 2021 and 2022, Rock Island County's population declined the most with a negative growth of 1,465 (-1.02%).

Things to know

Is Rock Island County, IL population increasing or decreasing?

According to the latest data from U.S. Census Bureau's population estimates, Rock Island County's population decreased by 2,832 between 2020 and 2022. The decrease was 1,367 (0.95%) between 2020 and 2021; and decrease of 1,465 (1.02%) between 2021 and 2022.

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

Between 2012 and 2022, population of Rock Island County decreased by 6,159 (4.17%). The population was highest at 147,686 in the year 2013 and lowest at 141,527 in the year 2022. Overall the average growth rate witnessed for the last 10 years was -0.42%.

References

Datasets

Explore datasets by year of publication.
2023
Rock Island 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 Rock Island 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 Rock Island 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 Rock Island County was 141,527, a 1.02% decrease year-by-year from 2021. Previously, in 2021, Rock Island County population was 142,992, a decline of 0.95% compared to a population of 144,359 in 2020. Over the last 20 plus years, between 2000 and 2022, population of Rock Island County decreased by 7,622. In this period, the peak population was 149,149 in the year 2000. 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).

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

About the author

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Neilsberg Research
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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