100+ datasets found
  1. i

    20 Richest Counties in Illinois

    • illinois-demographics.com
    Updated Jun 20, 2024
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    Kristen Carney (2024). 20 Richest Counties in Illinois [Dataset]. https://www.illinois-demographics.com/counties_by_population
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    Dataset updated
    Jun 20, 2024
    Dataset provided by
    Cubit Planning, Inc.
    Authors
    Kristen Carney
    License

    https://www.illinois-demographics.com/terms_and_conditionshttps://www.illinois-demographics.com/terms_and_conditions

    Area covered
    Illinois
    Description

    A dataset listing Illinois counties by population for 2024.

  2. F

    Resident Population for all Illinois counties in Federal Reserve District 8:...

    • fred.stlouisfed.org
    json
    Updated Mar 14, 2025
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    (2025). Resident Population for all Illinois counties in Federal Reserve District 8: St. Louis [Dataset]. https://fred.stlouisfed.org/series/DILPOP
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    jsonAvailable download formats
    Dataset updated
    Mar 14, 2025
    License

    https://fred.stlouisfed.org/legal/#copyright-public-domainhttps://fred.stlouisfed.org/legal/#copyright-public-domain

    Area covered
    St. Louis, Illinois
    Description

    Graph and download economic data for Resident Population for all Illinois counties in Federal Reserve District 8: St. Louis (DILPOP) from 1970 to 2024 about FRB STL District, IL, residents, population, and USA.

  3. N

    Cook County, IL Annual Population and Growth Analysis Dataset: A...

    • neilsberg.com
    csv, json
    Updated Jul 30, 2024
    + more versions
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    Neilsberg Research (2024). Cook County, IL Annual Population and Growth Analysis Dataset: A Comprehensive Overview of Population Changes and Yearly Growth Rates in Cook County from 2000 to 2023 // 2024 Edition [Dataset]. https://www.neilsberg.com/insights/cook-county-il-population-by-year/
    Explore at:
    json, csvAvailable download formats
    Dataset updated
    Jul 30, 2024
    Dataset authored and provided by
    Neilsberg Research
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Cook County, Illinois
    Variables measured
    Annual Population Growth Rate, Population Between 2000 and 2023, Annual Population Growth Rate Percent
    Measurement technique
    The data presented in this dataset is derived from the 20 years data of U.S. Census Bureau Population Estimates Program (PEP) 2000 - 2023. To measure the variables, namely (a) population and (b) population change in ( absolute and as a percentage ), we initially analyzed and tabulated the data for each of the years between 2000 and 2023. For further information regarding these estimates, please feel free to reach out to us via email at research@neilsberg.com.
    Dataset funded by
    Neilsberg Research
    Description
    About this dataset

    Context

    The dataset tabulates the Cook 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 Cook 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 2023, the population of Cook County was 5.09 million, a 0.48% decrease year-by-year from 2022. Previously, in 2022, Cook County population was 5.11 million, a decline of 1.34% compared to a population of 5.18 million in 2021. Over the last 20 plus years, between 2000 and 2023, population of Cook County decreased by 289,679. In this period, the peak population was 5.38 million 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).

    Content

    When available, the data consists of estimates from the U.S. Census Bureau Population Estimates Program (PEP).

    Data Coverage:

    • From 2000 to 2023

    Variables / Data Columns

    • Year: This column displays the data year (Measured annually and for years 2000 to 2023)
    • Population: The population for the specific year for the Cook County is shown in this column.
    • Year on Year Change: This column displays the change in Cook 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 Cook County Population by Year. You can refer the same here

  4. F

    Resident Population in Cook County, IL

    • fred.stlouisfed.org
    json
    Updated Mar 14, 2025
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    (2025). Resident Population in Cook County, IL [Dataset]. https://fred.stlouisfed.org/series/ILCOOK1POP
    Explore at:
    jsonAvailable download formats
    Dataset updated
    Mar 14, 2025
    License

    https://fred.stlouisfed.org/legal/#copyright-public-domainhttps://fred.stlouisfed.org/legal/#copyright-public-domain

    Area covered
    Cook County, Illinois
    Description

    Graph and download economic data for Resident Population in Cook County, IL (ILCOOK1POP) from 1970 to 2024 about Cook County, IL; Chicago; IL; residents; population; and USA.

  5. N

    Macon County, IL Annual Population and Growth Analysis Dataset: A...

    • neilsberg.com
    csv, json
    Updated Jul 30, 2024
    + more versions
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    Neilsberg Research (2024). Macon County, IL Annual Population and Growth Analysis Dataset: A Comprehensive Overview of Population Changes and Yearly Growth Rates in Macon County from 2000 to 2023 // 2024 Edition [Dataset]. https://www.neilsberg.com/insights/macon-county-il-population-by-year/
    Explore at:
    json, csvAvailable download formats
    Dataset updated
    Jul 30, 2024
    Dataset authored and provided by
    Neilsberg Research
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Macon County, Illinois
    Variables measured
    Annual Population Growth Rate, Population Between 2000 and 2023, Annual Population Growth Rate Percent
    Measurement technique
    The data presented in this dataset is derived from the 20 years data of U.S. Census Bureau Population Estimates Program (PEP) 2000 - 2023. To measure the variables, namely (a) population and (b) population change in ( absolute and as a percentage ), we initially analyzed and tabulated the data for each of the years between 2000 and 2023. For further information regarding these estimates, please feel free to reach out to us via email at research@neilsberg.com.
    Dataset funded by
    Neilsberg Research
    Description
    About this dataset

    Context

    The dataset tabulates the Macon 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 Macon 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 2023, the population of Macon County was 100,591, a 0.73% decrease year-by-year from 2022. Previously, in 2022, Macon County population was 101,333, a decline of 1.23% compared to a population of 102,597 in 2021. Over the last 20 plus years, between 2000 and 2023, population of Macon County decreased by 13,854. In this period, the peak population was 114,445 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).

    Content

    When available, the data consists of estimates from the U.S. Census Bureau Population Estimates Program (PEP).

    Data Coverage:

    • From 2000 to 2023

    Variables / Data Columns

    • Year: This column displays the data year (Measured annually and for years 2000 to 2023)
    • Population: The population for the specific year for the Macon County is shown in this column.
    • Year on Year Change: This column displays the change in Macon 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 Macon County Population by Year. You can refer the same here

  6. TIGER/Line Shapefile, Current, State, Illinois, County Subdivision

    • catalog.data.gov
    Updated Aug 7, 2025
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    U.S. Department of Commerce, U.S. Census Bureau, Geography Division (Point of Contact) (2025). TIGER/Line Shapefile, Current, State, Illinois, County Subdivision [Dataset]. https://catalog.data.gov/dataset/tiger-line-shapefile-current-state-illinois-county-subdivision
    Explore at:
    Dataset updated
    Aug 7, 2025
    Dataset provided by
    United States Census Bureauhttp://census.gov/
    Area covered
    Illinois
    Description

    This resource is a member of a series. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) System (MTS). The MTS represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. County subdivisions are the primary divisions of counties and equivalent entities for the reporting of Census Bureau data. They include legally-recognized minor civil divisions (MCDs) and statistical census county divisions (CCDs), and unorganized territories. In MCD states where no MCD exists or is not defined, the Census Bureau creates statistical unorganized territories to complete coverage. The entire area of the United States, Puerto Rico, and the Island Areas are covered by county subdivisions. The boundaries of most legal MCDs are as of January 1, 2024, as reported through the Census Bureau's Boundary and Annexation Survey (BAS). The boundaries of all CCDs are those as reported as part of the Census Bureau's Participant Statistical Areas Program (PSAP) for the 2020 Census.

  7. N

    counties in Illinois Ranked by Black Population // 2025 Edition

    • neilsberg.com
    csv, json
    Updated Feb 10, 2025
    + more versions
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    Neilsberg Research (2025). counties in Illinois Ranked by Black Population // 2025 Edition [Dataset]. https://www.neilsberg.com/insights/lists/counties-in-illinois-by-black-population/
    Explore at:
    csv, jsonAvailable download formats
    Dataset updated
    Feb 10, 2025
    Dataset authored and provided by
    Neilsberg Research
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Illinois
    Variables measured
    Black Population, Black Population as Percent of Total Black Population of Illinois, Black Population as Percent of Total Population of counties in Illinois
    Measurement technique
    To measure the rank and respective trends, we initially gathered data from the five most recent American Community Survey (ACS) 5-Year Estimates. We then analyzed and categorized the data for each of the racial categories identified by the U.S. Census Bureau. Based on the required racial category classification, we calculated the rank. For geographies with no population reported for the chosen race, we did not assign a rank and excluded them from the list. It is possible that a small population exists but was not reported or captured due to limitations or variations in Census data collection and reporting. We ensured that the population estimates used in this dataset pertain exclusively to the identified racial categories and do not rely on any ethnicity classification, unless explicitly required.For further information regarding these estimates, please feel free to reach out to us via email at research@neilsberg.com.
    Dataset funded by
    Neilsberg Research
    Description
    About this dataset

    Context

    This list ranks the 102 counties in the Illinois by Black or African American population, as estimated by the United States Census Bureau. It also highlights population changes in each counties over the past five years.

    Content

    When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates, including:

    • 2019-2023 American Community Survey 5-Year Estimates
    • 2018-2022 American Community Survey 5-Year Estimates
    • 2017-2021 American Community Survey 5-Year Estimates
    • 2016-2020 American Community Survey 5-Year Estimates
    • 2015-2019 American Community Survey 5-Year Estimates

    Variables / Data Columns

    • Rank by Black Population: This column displays the rank of counties in the Illinois by their Black or African American population, using the most recent ACS data available.
    • counties: The counties for which the rank is shown in the previous column.
    • Black Population: The Black population of the counties is shown in this column.
    • % of Total counties Population: This shows what percentage of the total counties population identifies as Black. Please note that the sum of all percentages may not equal one due to rounding of values.
    • % of Total Illinois Black Population: This tells us how much of the entire Illinois Black population lives in that counties. Please note that the sum of all percentages may not equal one due to rounding of values.
    • 5 Year Rank Trend: TThis column displays the rank trend across the last 5 years.

    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/.

  8. N

    Cook County, IL Population Pyramid Dataset: Age Groups, Male and Female...

    • neilsberg.com
    csv, json
    Updated Feb 22, 2025
    + more versions
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    Neilsberg Research (2025). Cook County, IL Population Pyramid Dataset: Age Groups, Male and Female Population, and Total Population for Demographics Analysis // 2025 Edition [Dataset]. https://www.neilsberg.com/research/datasets/524526ae-f122-11ef-8c1b-3860777c1fe6/
    Explore at:
    json, csvAvailable download formats
    Dataset updated
    Feb 22, 2025
    Dataset authored and provided by
    Neilsberg Research
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Cook County, Illinois
    Variables measured
    Male and Female Population Under 5 Years, Male and Female Population over 85 years, Male and Female Total Population for Age Groups, Male and Female Population Between 5 and 9 years, Male and Female Population Between 10 and 14 years, Male and Female Population Between 15 and 19 years, Male and Female Population Between 20 and 24 years, Male and Female Population Between 25 and 29 years, Male and Female Population Between 30 and 34 years, Male and Female Population Between 35 and 39 years, and 9 more
    Measurement technique
    The data presented in this dataset is derived from the latest U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates. To measure the three variables, namely (a) male population, (b) female population and (b) total population, we initially analyzed and categorized the data for each of the age groups. For age groups we divided it into roughly a 5 year bucket for ages between 0 and 85. For over 85, we aggregated data into a single group for all ages. For further information regarding these estimates, please feel free to reach out to us via email at research@neilsberg.com.
    Dataset funded by
    Neilsberg Research
    Description
    About this dataset

    Context

    The dataset tabulates the data for the Cook County, IL population pyramid, which represents the Cook County population distribution across age and gender, using estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates. It lists the male and female population for each age group, along with the total population for those age groups. Higher numbers at the bottom of the table suggest population growth, whereas higher numbers at the top indicate declining birth rates. Furthermore, the dataset can be utilized to understand the youth dependency ratio, old-age dependency ratio, total dependency ratio, and potential support ratio.

    Key observations

    • Youth dependency ratio, which is the number of children aged 0-14 per 100 persons aged 15-64, for Cook County, IL, is 26.4.
    • Old-age dependency ratio, which is the number of persons aged 65 or over per 100 persons aged 15-64, for Cook County, IL, is 23.3.
    • Total dependency ratio for Cook County, IL is 49.7.
    • Potential support ratio, which is the number of youth (working age population) per elderly, for Cook County, IL is 4.3.
    Content

    When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

    Age groups:

    • Under 5 years
    • 5 to 9 years
    • 10 to 14 years
    • 15 to 19 years
    • 20 to 24 years
    • 25 to 29 years
    • 30 to 34 years
    • 35 to 39 years
    • 40 to 44 years
    • 45 to 49 years
    • 50 to 54 years
    • 55 to 59 years
    • 60 to 64 years
    • 65 to 69 years
    • 70 to 74 years
    • 75 to 79 years
    • 80 to 84 years
    • 85 years and over

    Variables / Data Columns

    • Age Group: This column displays the age group for the Cook County population analysis. Total expected values are 18 and are define above in the age groups section.
    • Population (Male): The male population in the Cook County for the selected age group is shown in the following column.
    • Population (Female): The female population in the Cook County for the selected age group is shown in the following column.
    • Total Population: The total population of the Cook County for the selected age group is shown in the following column.

    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 Cook County Population by Age. You can refer the same here

  9. N

    Peoria County, IL Age Group Population Dataset: A Complete Breakdown of...

    • neilsberg.com
    csv, json
    Updated Feb 22, 2025
    + more versions
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    Neilsberg Research (2025). Peoria County, IL Age Group Population Dataset: A Complete Breakdown of Peoria County Age Demographics from 0 to 85 Years and Over, Distributed Across 18 Age Groups // 2025 Edition [Dataset]. https://www.neilsberg.com/insights/peoria-county-il-population-by-age/
    Explore at:
    csv, jsonAvailable download formats
    Dataset updated
    Feb 22, 2025
    Dataset authored and provided by
    Neilsberg Research
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Peoria County, Illinois
    Variables measured
    Population Under 5 Years, Population over 85 years, Population Between 5 and 9 years, Population Between 10 and 14 years, Population Between 15 and 19 years, Population Between 20 and 24 years, Population Between 25 and 29 years, Population Between 30 and 34 years, Population Between 35 and 39 years, Population Between 40 and 44 years, and 9 more
    Measurement technique
    The data presented in this dataset is derived from the latest U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates. To measure the two variables, namely (a) population and (b) population as a percentage of the total population, we initially analyzed and categorized the data for each of the age groups. For age groups we divided it into roughly a 5 year bucket for ages between 0 and 85. For over 85, we aggregated data into a single group for all ages. For further information regarding these estimates, please feel free to reach out to us via email at research@neilsberg.com.
    Dataset funded by
    Neilsberg Research
    Description
    About this dataset

    Context

    The dataset tabulates the Peoria County population distribution across 18 age groups. It lists the population in each age group along with the percentage population relative of the total population for Peoria County. The dataset can be utilized to understand the population distribution of Peoria County by age. For example, using this dataset, we can identify the largest age group in Peoria County.

    Key observations

    The largest age group in Peoria County, IL was for the group of age 5 to 9 years years with a population of 12,965 (7.21%), according to the ACS 2019-2023 5-Year Estimates. At the same time, the smallest age group in Peoria County, IL was the 80 to 84 years years with a population of 3,482 (1.94%). Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates

    Content

    When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates

    Age groups:

    • Under 5 years
    • 5 to 9 years
    • 10 to 14 years
    • 15 to 19 years
    • 20 to 24 years
    • 25 to 29 years
    • 30 to 34 years
    • 35 to 39 years
    • 40 to 44 years
    • 45 to 49 years
    • 50 to 54 years
    • 55 to 59 years
    • 60 to 64 years
    • 65 to 69 years
    • 70 to 74 years
    • 75 to 79 years
    • 80 to 84 years
    • 85 years and over

    Variables / Data Columns

    • Age Group: This column displays the age group in consideration
    • Population: The population for the specific age group in the Peoria County is shown in this column.
    • % of Total Population: This column displays the population of each age group as a proportion of Peoria County total population. 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 Age. You can refer the same here

  10. A

    IDPH Population Projections For Illinois Counties 2010 To 2025

    • data.amerigeoss.org
    • data.wu.ac.at
    csv, json, rdf, xml
    Updated Jun 29, 2015
    + more versions
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    United States (2015). IDPH Population Projections For Illinois Counties 2010 To 2025 [Dataset]. https://data.amerigeoss.org/it/dataset/idph-population-projections-for-illinois-counties-2010-to-2025
    Explore at:
    csv, xml, json, rdfAvailable download formats
    Dataset updated
    Jun 29, 2015
    Dataset provided by
    United States
    Area covered
    Illinois
    Description

    Introduction This report presents projections of population from 2015 to 2025 by age and sex for Illinois, Chicago and Illinois counties produced for the Certificate of Need (CON) Program. As actual future population trends are unknown, the projected numbers should not be considered a precise prediction of the future population; rather, these projections, calculated under a specific set of assumptions, indicate the levels of population that would result if our assumptions about each population component (births, deaths and net migration) hold true. The assumptions used in this report, and the details presented below, generally assume a continuation of current trends. Methodology These projections were produced using a demographic cohort-component projection model. In this model, each component of population change – birth, death and net migration – is projected separately for each five-year birth cohort and sex. The cohort – component method employs the following basic demographic balancing equation: P1 = P0 + B – D + NM Where: P1 = Population at the end of the period; P0 = Population at the beginning of the period; B = Resident births during the period; D = Resident deaths during the period; and NM = Net migration (Inmigration – Outmigration) during the period. The model roughly works as follows: for every five-year projection period, the base population, disaggregated by five-year age groups and sex, is “survived” to the next five-year period by applying the appropriate survival rates for each age and sex group; next, net migrants by age and sex are added to the survived population. The population under 5 years of age is generated by applying age specific birth rates to the survived females in childbearing age (15 to 49 years). Base Population These projections began with the July 1, 2010 population estimates by age and sex produced by the U.S. Census Bureau. The most recent census population of April 1, 2010 was the base for July 1, 2010 population estimates. Special Populations In 19 counties, the college dormitory population or adult inmates in correctional facilities accounted for 5 percent or more of the total population of the county; these counties were considered as special counties. There were six college dorm counties (Champaign, Coles, DeKalb, Jackson, McDonough and McLean) and 13 correctional facilities counties (Bond, Brown, Crawford, Fayette, Fulton, Jefferson, Johnson, Lawrence, Lee, Logan, Montgomery, Perry and Randolph) that qualified as special counties. When projecting the population, these special populations were first subtracted from the base populations for each special county; then they were added back to the projected population to produce the total population projections by age and sex. The base special population by age and sex from the 2010 population census was used for this purpose with the assumption that this population will remain the same throughout each projection period. Mortality Future deaths were projected by applying age and sex specific survival rates to each age and sex specific base population. The assumptions on survival rates were developed on the basis of trends of mortality rates in the individual life tables constructed for each level of geography for 1989-1991, 1999-2001 and 2009-2011. The application of five-year survival rates provides a projection of the number of persons from the initial population expected to be alive in five years. Resident deaths data by age and sex from 1989 to 2011 were provided by the Illinois Center for Health Statistics (ICHS), Illinois Department of Public Health. Fertility Total fertility rates (TFRs) were first computed for each county. For most counties, the projected 2015 TFRs were computed as the average of the 2000 and 2010 TFRs. 2010 or 2015 rates were retained for 2020 projections, depending on the birth trend of each county. The age-specific birth rates (ASBR) were next computed for each county by multiplying the 2010 ASBR by each projected TFR. Total births were then projected for each county by applying age-specific birth rates to the projected female population of reproductive ages (15 to 49 years). The total births were broken down by sex, using an assumed sex-ratio at birth. These births were survived five years applying assumed survival ratios to get the projected population for the age group 0-4. For the special counties, special populations by age and sex were taken out before computing age-specific birth rates. The resident birth data used to compute age-specific birth rates for 1989-1991, 1999-2001 and 2009-2011 came from ICHS. Births to females younger than 15 years of age were added to those of the 15-19 age group and births to women older than 49 years of age were added to the 45-49 age group. Net Migration Migration is the major component of population change in Illinois, Chicago and Illinois counties. The state is experiencing a significant loss of population through internal (domestic migration within the U.S.) net migration. Unlike data on births and deaths, migration data based on administrative records are not available on a regular basis. Most data on migration are collected through surveys or indirectly from administrative records (IRS individual tax returns). For this report, net migration trends have been reviewed using data from different sources and methods (such as residual method) from the University of Wisconsin, Madison, Illinois Department of Public Health, individual exemptions data from the Internal Revenue Service, and survey data from the U.S. Census Bureau. On the basis of knowledge gained through this review and of levels of net migration from different sources, assumptions have been made that Illinois will have annual net migrants of -40, 000, -35,000 and -30,000 during 2010-2015, 2015-2020 and 2020-2025, respectively. These figures have been distributed among the counties, using age and sex distribution of net migrants during 1995-2000. The 2000 population census was the last decennial census, which included the question “Where did you live five years ago?” The age and sex distribution of the net migrants was derived, using answers to this question. The net migration for Chicago has been derived independently, using census survival method for 1990-2000 and 2000-2010 under the assumption that the annual net migration for Chicago will be -40,000, -30,000 and -25,000 for 2010-2015, 2015-2020 and 2020-2025, respectively. The age and sex distribution from the 2000-2010 net migration was used to distribute the net migrants for the projection periods. Conclusion These projections were prepared for use by the Certificate of Need (CON) Program; they are produced using evidence-based techniques, reasonable assumptions and the best available input data. However, as assumptions of future demographic trends may contain errors, the resulting projections are unlikely to be free of errors. In general, projections of small areas are less reliable than those for larger areas, and the farther in the future projections are made, the less reliable they may become. When possible, these projections should be regularly reviewed and updated, using more recent birth, death and migration data.

  11. F

    Resident Population in DuPage County, IL

    • fred.stlouisfed.org
    json
    Updated Mar 14, 2025
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    (2025). Resident Population in DuPage County, IL [Dataset]. https://fred.stlouisfed.org/series/ILDUPA0POP
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    jsonAvailable download formats
    Dataset updated
    Mar 14, 2025
    License

    https://fred.stlouisfed.org/legal/#copyright-public-domainhttps://fred.stlouisfed.org/legal/#copyright-public-domain

    Area covered
    DuPage County, Illinois
    Description

    Graph and download economic data for Resident Population in DuPage County, IL (ILDUPA0POP) from 1970 to 2024 about Du Page County, IL; Chicago; IL; residents; population; and USA.

  12. N

    English Population Distribution Data - Illinois Counties (2019-2023)

    • neilsberg.com
    csv, json
    Updated Oct 1, 2025
    + more versions
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    Neilsberg Research (2025). English Population Distribution Data - Illinois Counties (2019-2023) [Dataset]. https://www.neilsberg.com/insights/lists/english-population-in-illinois-by-county/
    Explore at:
    json, csvAvailable download formats
    Dataset updated
    Oct 1, 2025
    Dataset authored and provided by
    Neilsberg Research
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Illinois
    Variables measured
    English Population Count, English Population Percentage, English Population Share of Illinois
    Measurement technique
    To measure the rank and respective trends, we initially gathered data from the five most recent American Community Survey (ACS) 5-Year Estimates. We then analyzed and categorized the data for each of the origins / ancestries identified by the U.S. Census Bureau. It is possible that a small population exists but was not reported or captured due to limitations or variations in Census data collection and reporting. We ensured that the population estimates used in this dataset pertain exclusively to the identified origins / ancestries and do not rely on any ethnicity classification, unless explicitly required. For further information regarding these estimates, please feel free to reach out to us via email at research@neilsberg.com.
    Dataset funded by
    Neilsberg Research
    Description
    About this dataset

    Context

    This list ranks the 102 counties in the Illinois by English population, as estimated by the United States Census Bureau. It also highlights population changes in each county over the past five years.

    Content

    When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates, including:

    • 2019-2023 American Community Survey 5-Year Estimates
    • 2014-2018 American Community Survey 5-Year Estimates
    • 2009-2013 American Community Survey 5-Year Estimates

    Variables / Data Columns

    • Rank by English Population: This column displays the rank of county in the Illinois by their English population, using the most recent ACS data available.
    • County: The County for which the rank is shown in the previous column.
    • English Population: The English population of the county is shown in this column.
    • % of Total County Population: This shows what percentage of the total county population identifies as English. Please note that the sum of all percentages may not equal one due to rounding of values.
    • % of Total Illinois English Population: This tells us how much of the entire Illinois English population lives in that county. Please note that the sum of all percentages may not equal one due to rounding of values.
    • 5 Year Rank Trend: This column displays the rank trend across the last 5 years.

    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/.

  13. N

    Champaign County, IL Annual Population and Growth Analysis Dataset: A...

    • neilsberg.com
    csv, json
    Updated Jul 30, 2024
    + more versions
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    Neilsberg Research (2024). Champaign County, IL Annual Population and Growth Analysis Dataset: A Comprehensive Overview of Population Changes and Yearly Growth Rates in Champaign County from 2000 to 2023 // 2024 Edition [Dataset]. https://www.neilsberg.com/insights/champaign-county-il-population-by-year/
    Explore at:
    json, csvAvailable download formats
    Dataset updated
    Jul 30, 2024
    Dataset authored and provided by
    Neilsberg Research
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Champaign County, Illinois
    Variables measured
    Annual Population Growth Rate, Population Between 2000 and 2023, Annual Population Growth Rate Percent
    Measurement technique
    The data presented in this dataset is derived from the 20 years data of U.S. Census Bureau Population Estimates Program (PEP) 2000 - 2023. To measure the variables, namely (a) population and (b) population change in ( absolute and as a percentage ), we initially analyzed and tabulated the data for each of the years between 2000 and 2023. For further information regarding these estimates, please feel free to reach out to us via email at research@neilsberg.com.
    Dataset funded by
    Neilsberg Research
    Description
    About this dataset

    Context

    The dataset tabulates the Champaign 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 Champaign 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 2023, the population of Champaign County was 205,644, a 0.25% decrease year-by-year from 2022. Previously, in 2022, Champaign County population was 206,169, a decline of 0.21% compared to a population of 206,605 in 2021. Over the last 20 plus years, between 2000 and 2023, population of Champaign County increased by 25,708. In this period, the peak population was 210,630 in the year 2017. 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).

    Content

    When available, the data consists of estimates from the U.S. Census Bureau Population Estimates Program (PEP).

    Data Coverage:

    • From 2000 to 2023

    Variables / Data Columns

    • Year: This column displays the data year (Measured annually and for years 2000 to 2023)
    • Population: The population for the specific year for the Champaign County is shown in this column.
    • Year on Year Change: This column displays the change in Champaign 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 Champaign County Population by Year. You can refer the same here

  14. N

    Clinton County, IL Age Cohorts Dataset: Children, Working Adults, and...

    • neilsberg.com
    csv, json
    Updated Feb 22, 2025
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    Neilsberg Research (2025). Clinton County, IL Age Cohorts Dataset: Children, Working Adults, and Seniors in Clinton County - Population and Percentage Analysis // 2025 Edition [Dataset]. https://www.neilsberg.com/insights/clinton-county-il-population-by-age/
    Explore at:
    csv, jsonAvailable download formats
    Dataset updated
    Feb 22, 2025
    Dataset authored and provided by
    Neilsberg Research
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Clinton County, Illinois
    Variables measured
    Population Over 65 Years, Population Under 18 Years, Population Between 18 and 64 Years, Percent of Total Population for Age Groups
    Measurement technique
    The data presented in this dataset is derived from the latest U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates. To measure the two variables, namely (a) population and (b) population as a percentage of the total population, we initially analyzed and categorized the data for each of the age cohorts. For age cohorts we divided it into three buckets Children ( Under the age of 18 years), working population ( Between 18 and 64 years) and senior population ( Over 65 years). For further information regarding these estimates, please feel free to reach out to us via email at research@neilsberg.com.
    Dataset funded by
    Neilsberg Research
    Description
    About this dataset

    Context

    The dataset tabulates the Clinton County population by age cohorts (Children: Under 18 years; Working population: 18-64 years; Senior population: 65 years or more). It lists the population in each age cohort group along with its percentage relative to the total population of Clinton County. The dataset can be utilized to understand the population distribution across children, working population and senior population for dependency ratio, housing requirements, ageing, migration patterns etc.

    Key observations

    The largest age group was 18 to 64 years with a poulation of 22,241 (60.28% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

    Content

    When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 2019-2023 5-Year Estimates.

    Age cohorts:

    • Under 18 years
    • 18 to 64 years
    • 65 years and over

    Variables / Data Columns

    • Age Group: This column displays the age cohort for the Clinton County population analysis. Total expected values are 3 groups ( Children, Working Population and Senior Population).
    • Population: The population for the age cohort in Clinton County is shown in the following column.
    • Percent of Total Population: The population as a percent of total population of the Clinton County is shown in the following column.

    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 Clinton County Population by Age. You can refer the same here

  15. N

    Mexican Population Distribution Data - Illinois Counties (2019-2023)

    • neilsberg.com
    csv, json
    Updated Oct 1, 2025
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    Neilsberg Research (2025). Mexican Population Distribution Data - Illinois Counties (2019-2023) [Dataset]. https://www.neilsberg.com/insights/lists/mexican-population-in-illinois-by-county/
    Explore at:
    json, csvAvailable download formats
    Dataset updated
    Oct 1, 2025
    Dataset authored and provided by
    Neilsberg Research
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Illinois
    Variables measured
    Mexican Population Count, Mexican Population Percentage, Mexican Population Share of Illinois
    Measurement technique
    To measure the rank and respective trends, we initially gathered data from the five most recent American Community Survey (ACS) 5-Year Estimates. We then analyzed and categorized the data for each of the origins / ancestries identified by the U.S. Census Bureau. It is possible that a small population exists but was not reported or captured due to limitations or variations in Census data collection and reporting. We ensured that the population estimates used in this dataset pertain exclusively to the identified origins / ancestries and do not rely on any ethnicity classification, unless explicitly required. For further information regarding these estimates, please feel free to reach out to us via email at research@neilsberg.com.
    Dataset funded by
    Neilsberg Research
    Description
    About this dataset

    Context

    This list ranks the 102 counties in the Illinois by Mexican population, as estimated by the United States Census Bureau. It also highlights population changes in each county over the past five years.

    Content

    When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates, including:

    • 2019-2023 American Community Survey 5-Year Estimates
    • 2014-2018 American Community Survey 5-Year Estimates
    • 2009-2013 American Community Survey 5-Year Estimates

    Variables / Data Columns

    • Rank by Mexican Population: This column displays the rank of county in the Illinois by their Mexican population, using the most recent ACS data available.
    • County: The County for which the rank is shown in the previous column.
    • Mexican Population: The Mexican population of the county is shown in this column.
    • % of Total County Population: This shows what percentage of the total county population identifies as Mexican. Please note that the sum of all percentages may not equal one due to rounding of values.
    • % of Total Illinois Mexican Population: This tells us how much of the entire Illinois Mexican population lives in that county. Please note that the sum of all percentages may not equal one due to rounding of values.
    • 5 Year Rank Trend: This column displays the rank trend across the last 5 years.

    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/.

  16. N

    Polish Population Distribution Data - Illinois Counties (2019-2023)

    • neilsberg.com
    csv, json
    Updated Oct 1, 2025
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    Neilsberg Research (2025). Polish Population Distribution Data - Illinois Counties (2019-2023) [Dataset]. https://www.neilsberg.com/insights/lists/polish-population-in-illinois-by-county/
    Explore at:
    json, csvAvailable download formats
    Dataset updated
    Oct 1, 2025
    Dataset authored and provided by
    Neilsberg Research
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Illinois
    Variables measured
    Polish Population Count, Polish Population Percentage, Polish Population Share of Illinois
    Measurement technique
    To measure the rank and respective trends, we initially gathered data from the five most recent American Community Survey (ACS) 5-Year Estimates. We then analyzed and categorized the data for each of the origins / ancestries identified by the U.S. Census Bureau. It is possible that a small population exists but was not reported or captured due to limitations or variations in Census data collection and reporting. We ensured that the population estimates used in this dataset pertain exclusively to the identified origins / ancestries and do not rely on any ethnicity classification, unless explicitly required. For further information regarding these estimates, please feel free to reach out to us via email at research@neilsberg.com.
    Dataset funded by
    Neilsberg Research
    Description
    About this dataset

    Context

    This list ranks the 102 counties in the Illinois by Polish population, as estimated by the United States Census Bureau. It also highlights population changes in each county over the past five years.

    Content

    When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates, including:

    • 2019-2023 American Community Survey 5-Year Estimates
    • 2014-2018 American Community Survey 5-Year Estimates
    • 2009-2013 American Community Survey 5-Year Estimates

    Variables / Data Columns

    • Rank by Polish Population: This column displays the rank of county in the Illinois by their Polish population, using the most recent ACS data available.
    • County: The County for which the rank is shown in the previous column.
    • Polish Population: The Polish population of the county is shown in this column.
    • % of Total County Population: This shows what percentage of the total county population identifies as Polish. Please note that the sum of all percentages may not equal one due to rounding of values.
    • % of Total Illinois Polish Population: This tells us how much of the entire Illinois Polish population lives in that county. Please note that the sum of all percentages may not equal one due to rounding of values.
    • 5 Year Rank Trend: This column displays the rank trend across the last 5 years.

    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/.

  17. N

    Filipino Population Distribution Data - Illinois Counties (2019-2023)

    • neilsberg.com
    csv, json
    Updated Oct 1, 2025
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    Neilsberg Research (2025). Filipino Population Distribution Data - Illinois Counties (2019-2023) [Dataset]. https://www.neilsberg.com/insights/lists/filipino-population-in-illinois-by-county/
    Explore at:
    json, csvAvailable download formats
    Dataset updated
    Oct 1, 2025
    Dataset authored and provided by
    Neilsberg Research
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Illinois
    Variables measured
    Filipino Population Count, Filipino Population Percentage, Filipino Population Share of Illinois
    Measurement technique
    To measure the rank and respective trends, we initially gathered data from the five most recent American Community Survey (ACS) 5-Year Estimates. We then analyzed and categorized the data for each of the origins / ancestries identified by the U.S. Census Bureau. It is possible that a small population exists but was not reported or captured due to limitations or variations in Census data collection and reporting. We ensured that the population estimates used in this dataset pertain exclusively to the identified origins / ancestries and do not rely on any ethnicity classification, unless explicitly required. For further information regarding these estimates, please feel free to reach out to us via email at research@neilsberg.com.
    Dataset funded by
    Neilsberg Research
    Description
    About this dataset

    Context

    This list ranks the 102 counties in the Illinois by Filipino population, as estimated by the United States Census Bureau. It also highlights population changes in each county over the past five years.

    Content

    When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates, including:

    • 2019-2023 American Community Survey 5-Year Estimates
    • 2014-2018 American Community Survey 5-Year Estimates
    • 2009-2013 American Community Survey 5-Year Estimates

    Variables / Data Columns

    • Rank by Filipino Population: This column displays the rank of county in the Illinois by their Filipino population, using the most recent ACS data available.
    • County: The County for which the rank is shown in the previous column.
    • Filipino Population: The Filipino population of the county is shown in this column.
    • % of Total County Population: This shows what percentage of the total county population identifies as Filipino. Please note that the sum of all percentages may not equal one due to rounding of values.
    • % of Total Illinois Filipino Population: This tells us how much of the entire Illinois Filipino population lives in that county. Please note that the sum of all percentages may not equal one due to rounding of values.
    • 5 Year Rank Trend: This column displays the rank trend across the last 5 years.

    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/.

  18. F

    Resident Population in Will County, IL

    • fred.stlouisfed.org
    json
    Updated Mar 14, 2025
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    (2025). Resident Population in Will County, IL [Dataset]. https://fred.stlouisfed.org/series/ILWILL7POP
    Explore at:
    jsonAvailable download formats
    Dataset updated
    Mar 14, 2025
    License

    https://fred.stlouisfed.org/legal/#copyright-public-domainhttps://fred.stlouisfed.org/legal/#copyright-public-domain

    Area covered
    Will County, Illinois
    Description

    Graph and download economic data for Resident Population in Will County, IL (ILWILL7POP) from 1970 to 2024 about Will County, IL; Chicago; IL; residents; population; and USA.

  19. N

    Costa Rican Population Distribution Data - Illinois Counties (2019-2023)

    • neilsberg.com
    csv, json
    Updated Oct 1, 2025
    + more versions
    Share
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    Neilsberg Research (2025). Costa Rican Population Distribution Data - Illinois Counties (2019-2023) [Dataset]. https://www.neilsberg.com/insights/lists/costa-rican-population-in-illinois-by-county/
    Explore at:
    csv, jsonAvailable download formats
    Dataset updated
    Oct 1, 2025
    Dataset authored and provided by
    Neilsberg Research
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Illinois
    Variables measured
    Costa Rican Population Count, Costa Rican Population Percentage, Costa Rican Population Share of Illinois
    Measurement technique
    To measure the rank and respective trends, we initially gathered data from the five most recent American Community Survey (ACS) 5-Year Estimates. We then analyzed and categorized the data for each of the origins / ancestries identified by the U.S. Census Bureau. It is possible that a small population exists but was not reported or captured due to limitations or variations in Census data collection and reporting. We ensured that the population estimates used in this dataset pertain exclusively to the identified origins / ancestries and do not rely on any ethnicity classification, unless explicitly required. For further information regarding these estimates, please feel free to reach out to us via email at research@neilsberg.com.
    Dataset funded by
    Neilsberg Research
    Description
    About this dataset

    Context

    This list ranks the 102 counties in the Illinois by Costa Rican population, as estimated by the United States Census Bureau. It also highlights population changes in each county over the past five years.

    Content

    When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates, including:

    • 2019-2023 American Community Survey 5-Year Estimates
    • 2014-2018 American Community Survey 5-Year Estimates
    • 2009-2013 American Community Survey 5-Year Estimates

    Variables / Data Columns

    • Rank by Costa Rican Population: This column displays the rank of county in the Illinois by their Costa Rican population, using the most recent ACS data available.
    • County: The County for which the rank is shown in the previous column.
    • Costa Rican Population: The Costa Rican population of the county is shown in this column.
    • % of Total County Population: This shows what percentage of the total county population identifies as Costa Rican. Please note that the sum of all percentages may not equal one due to rounding of values.
    • % of Total Illinois Costa Rican Population: This tells us how much of the entire Illinois Costa Rican population lives in that county. Please note that the sum of all percentages may not equal one due to rounding of values.
    • 5 Year Rank Trend: This column displays the rank trend across the last 5 years.

    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/.

  20. N

    Swiss Population Distribution Data - Illinois Counties (2019-2023)

    • neilsberg.com
    csv, json
    Updated Oct 1, 2025
    + more versions
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    Neilsberg Research (2025). Swiss Population Distribution Data - Illinois Counties (2019-2023) [Dataset]. https://www.neilsberg.com/insights/lists/swiss-population-in-illinois-by-county/
    Explore at:
    json, csvAvailable download formats
    Dataset updated
    Oct 1, 2025
    Dataset authored and provided by
    Neilsberg Research
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Illinois
    Variables measured
    Swiss Population Count, Swiss Population Percentage, Swiss Population Share of Illinois
    Measurement technique
    To measure the rank and respective trends, we initially gathered data from the five most recent American Community Survey (ACS) 5-Year Estimates. We then analyzed and categorized the data for each of the origins / ancestries identified by the U.S. Census Bureau. It is possible that a small population exists but was not reported or captured due to limitations or variations in Census data collection and reporting. We ensured that the population estimates used in this dataset pertain exclusively to the identified origins / ancestries and do not rely on any ethnicity classification, unless explicitly required. For further information regarding these estimates, please feel free to reach out to us via email at research@neilsberg.com.
    Dataset funded by
    Neilsberg Research
    Description
    About this dataset

    Context

    This list ranks the 102 counties in the Illinois by Swiss population, as estimated by the United States Census Bureau. It also highlights population changes in each county over the past five years.

    Content

    When available, the data consists of estimates from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates, including:

    • 2019-2023 American Community Survey 5-Year Estimates
    • 2014-2018 American Community Survey 5-Year Estimates
    • 2009-2013 American Community Survey 5-Year Estimates

    Variables / Data Columns

    • Rank by Swiss Population: This column displays the rank of county in the Illinois by their Swiss population, using the most recent ACS data available.
    • County: The County for which the rank is shown in the previous column.
    • Swiss Population: The Swiss population of the county is shown in this column.
    • % of Total County Population: This shows what percentage of the total county population identifies as Swiss. Please note that the sum of all percentages may not equal one due to rounding of values.
    • % of Total Illinois Swiss Population: This tells us how much of the entire Illinois Swiss population lives in that county. Please note that the sum of all percentages may not equal one due to rounding of values.
    • 5 Year Rank Trend: This column displays the rank trend across the last 5 years.

    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/.

Share
FacebookFacebook
TwitterTwitter
Email
Click to copy link
Link copied
Close
Cite
Kristen Carney (2024). 20 Richest Counties in Illinois [Dataset]. https://www.illinois-demographics.com/counties_by_population

20 Richest Counties in Illinois

Explore at:
9 scholarly articles cite this dataset (View in Google Scholar)
Dataset updated
Jun 20, 2024
Dataset provided by
Cubit Planning, Inc.
Authors
Kristen Carney
License

https://www.illinois-demographics.com/terms_and_conditionshttps://www.illinois-demographics.com/terms_and_conditions

Area covered
Illinois
Description

A dataset listing Illinois counties by population for 2024.

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