Lake County, IL Population by Year

In 2022, the population of Lake County was 709,150, a 0.42% decrease year-by-year from 2021. Previously, in 2021, Lake County's population was 712,160, a decline of 0.15% compared to a population of 713,251 in 2020.
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Updated Sep 18, 2023

Lake County, IL population between 2000 and 2022

Over the last 20 plus years, between 2000 and 2022, population of Lake County increased by 60,710. In this period, the peak population was 713,251 in the year 2020. 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 648,440 - -
2001 660,199 11,759 1.81%
2002 670,096 9,897 1.5%
2003 672,194 2,098 0.31%
2004 681,946 9,752 1.45%
2005 689,342 7,396 1.08%
2006 695,709 6,367 0.92%
2007 699,740 4,031 0.58%
2008 704,800 5,060 0.72%
2009 708,989 4,189 0.59%
2010 704,179 -4,810 -0.68%
2011 701,652 -2,527 -0.36%
2012 702,117 465 0.07%
2013 704,259 2,142 0.31%
2014 704,359 100 0.01%
2015 704,687 328 0.05%
2016 704,401 -286 -0.04%
2017 702,825 -1,576 -0.22%
2018 700,455 -2,370 -0.34%
2019 697,134 -3,321 -0.47%
2020 713,251 16,117 2.31%
2021 712,160 -1,091 -0.15%
2022 709,150 -3,010 -0.42%
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Lake County, IL population from 2000 to 2022

From 2000 to 2010, Lake County's population increased by 55,739 (8.60%), 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, Lake County's population increased by 9,072 (1.29%), 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 Lake County's population from 2000 to 2022, with years on x-axis and population on y-axis
Lake County's population from 2000 to 2022. The estimated population at the end of 2022 was 709,150. Source: U.S. Census Bureau (Population Estimates Program)

Between the year 2000 and 2022, Lake County's population peaked in year 2020 at 713,251.

Between the year 2000 and 2022, Lake County's population was lowest in year 2000 at 648,440.

Lake County, IL annual population growth rate

Between the years 2000 and 2022, i.e. 22 annual cycles, the population of Lake County grew year by year for 14 years and declined for 8 years.

From 2000 to 2022, Lake County had an average annual population growth rate of 0.43% per year. Overall the population grew 9.36% between 2000 and 2022.

The graph shows Lake County's annual population change from 2000 to 2022, with years on x-axis and population annual growth on y-axis
Lake County's annual population change from 2000 to 2022. The average annual growth rate from 2000 to 2022 was 0.43% per year. In the last two years, the population declined by 4,101. Source: U.S. Census Bureau (Population Estimates Program)

From 2019 to 2020, Lake County's population grew the most with an increase of 16,117 (2.31%).

While from 2009 and 2010, Lake County's population declined the most with a negative growth of 4,810 (-0.68%).

Things to know

Is Lake County, IL population increasing or decreasing?

According to the latest data from U.S. Census Bureau's population estimates, Lake County's population decreased by 4,101 between 2020 and 2022. The decrease was 1,091 (0.15%) between 2020 and 2021; and decrease of 3,010 (0.42%) between 2021 and 2022.

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

Between 2012 and 2022, population of Lake County increased by 4,891 (0.69%). The population was highest at 713,251 in the year 2020 and lowest at 697,134 in the year 2019. Overall the average growth rate witnessed for the last 10 years was 0.10%.

References

Datasets

Explore datasets by year of publication.
2023
Lake 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 Lake 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 Lake 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 Lake County was 709,150, a 0.42% decrease year-by-year from 2021. Previously, in 2021, Lake County population was 712,160, a decline of 0.15% compared to a population of 713,251 in 2020. Over the last 20 plus years, between 2000 and 2022, population of Lake County increased by 60,710. In this period, the peak population was 713,251 in the year 2020. 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).

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