About this dataset

Context

The dataset tabulates the Illinois 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 Illinois 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 2024, the population of Illinois was 12.71 million, a 0.54% increase year-by-year from 2023. Previously, in 2023, Illinois population was 12.64 million, an increase of 0.16% compared to a population of 12.62 million in 2022. Over the last 20 plus years, between 2000 and 2024, population of Illinois increased by 272,590. In this period, the peak population was 12.9 million in the year 2009. The numbers suggest that the population has already reached its peak and is showing a trend of decline. 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 2024

Variables / Data Columns

• Year: This column displays the data year (Measured annually and for years 2000 to 2024)
• Population: The population for the specific year for the Illinois is shown in this column.
• Year on Year Change: This column displays the change in Illinois 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 Illinois Population by Year. You can refer the same here

In 2023, about **** million people in Illinois were of Hispanic or Latino origin. Furthermore, there were about **** million white people and **** million Black people residing in Illinois in that same year.

About this dataset

Context

The dataset tabulates the Illinois 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 Illinois. The dataset can be utilized to understand the population distribution of Illinois by age. For example, using this dataset, we can identify the largest age group in Illinois.

Key observations

The largest age group in Illinois was for the group of age 30 to 34 years years with a population of 866,468 (6.83%), according to the ACS 2019-2023 5-Year Estimates. At the same time, the smallest age group in Illinois was the 80 to 84 years years with a population of 238,424 (1.88%). 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 Illinois is shown in this column.
• % of Total Population: This column displays the population of each age group as a proportion of Illinois 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 Illinois Population by Age. You can refer the same here

Graph and download economic data for Resident Population in Illinois (ILPOP) from 1900 to 2024 about IL, residents, population, and USA.

About this dataset

Context

The dataset tabulates the population of Illinois by race. It includes the population of Illinois across racial categories (excluding ethnicity) as identified by the Census Bureau. The dataset can be utilized to understand the population distribution of Illinois across relevant racial categories.

Key observations

The percent distribution of Illinois population by race (across all racial categories recognized by the U.S. Census Bureau): 63.33% are white, 13.79% are Black or African American, 0.53% are American Indian and Alaska Native, 5.82% are Asian, 0.04% are Native Hawaiian and other Pacific Islander, 7.25% are some other race and 9.24% are multiracial.

Content

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

Racial categories include:

• White
• Black or African American
• American Indian and Alaska Native
• Asian
• Native Hawaiian and Other Pacific Islander
• Some other race
• Two or more races (multiracial)

Variables / Data Columns

• Race: This column displays the racial categories (excluding ethnicity) for the Illinois
• Population: The population of the racial category (excluding ethnicity) in the Illinois is shown in this column.
• % of Total Population: This column displays the percentage distribution of each race as a proportion of Illinois 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 Illinois Population by Race & Ethnicity. You can refer the same here

In 2023, about ***** million people lived in Illinois. This was a decrease from the previous year, when about ***** million people lived in the state. In 1960, the resident population of Illinois was about ***** million people.

Chart and table of population level and growth rate for the state of Illinois from 1900 to 2024.

A dataset listing Illinois cities by population for 2024.

In 2023, about **** percent of the population in Illinois was between the ages of 25 and 34 years old. A further **** percent of people in Illinois were between the ages of 35 and 44 years old.

Graph and download economic data for Resident Population in Lake County, IL (ILLAKE7POP) from 1970 to 2024 about Lake County, IL; Chicago; IL; residents; population; and USA.

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) Database (MTDB). The MTDB 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. Census tracts are small, relatively permanent statistical subdivisions of a county or equivalent entity, and were defined by local participants as part of the 2020 Census Participant Statistical Areas Program. The Census Bureau delineated the census tracts in situations where no local participant existed or where all the potential participants declined to participate. The primary purpose of census tracts is to provide a stable set of geographic units for the presentation of census data and comparison back to previous decennial censuses. Census tracts generally have a population size between 1,200 and 8,000 people, with an optimum size of 4,000 people. When first delineated, census tracts were designed to be homogeneous with respect to population characteristics, economic status, and living conditions. The spatial size of census tracts varies widely depending on the density of settlement. Physical changes in street patterns caused by highway construction, new development, and so forth, may require boundary revisions. In addition, census tracts occasionally are split due to population growth, or combined as a result of substantial population decline. Census tract boundaries generally follow visible and identifiable features. They may follow legal boundaries such as minor civil division (MCD) or incorporated place boundaries in some States and situations to allow for census tract-to-governmental unit relationships where the governmental boundaries tend to remain unchanged between censuses. State and county boundaries always are census tract boundaries in the standard census geographic hierarchy. In a few rare instances, a census tract may consist of noncontiguous areas. These noncontiguous areas may occur where the census tracts are coextensive with all or parts of legal entities that are themselves noncontiguous. For the 2010 Census, the census tract code range of 9400 through 9499 was enforced for census tracts that include a majority American Indian population according to Census 2000 data and/or their area was primarily covered by federally recognized American Indian reservations and/or off-reservation trust lands; the code range 9800 through 9899 was enforced for those census tracts that contained little or no population and represented a relatively large special land use area such as a National Park, military installation, or a business/industrial park; and the code range 9900 through 9998 was enforced for those census tracts that contained only water area, no land area.

A dataset listing Illinois zip codes by population for 2024.

A dataset listing Illinois counties by population for 2024.

Graph and download economic data for Resident Population in DeKalb County, IL (ILDEKA5POP) from 1970 to 2024 about DeKalb County, IL; Chicago; IL; residents; population; and USA.

Graph and download economic data for Resident Population in Lee County, IL (ILLEEC3POP) from 1970 to 2024 about Lee County, IL; IL; residents; population; and USA.

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.

Graph and download economic data for Resident Population in Rock Island County, IL (ILROCK5POP) from 1970 to 2024 about Rock Island County, IL; Davenport; IL; residents; population; and USA.

Graph and download economic data for Resident Population in Champaign County, IL (ILCHAM9POP) from 1970 to 2024 about Champaign County, IL; Champaign; IL; residents; population; and USA.

Graph and download economic data for Population Estimate, Total (5-year estimate) in St. Clair County, IL (B03002001E017163) from 2009 to 2023 about St. Clair County, IL; St. Louis; estimate; IL; persons; 5-year; population; and USA.

Graph and download economic data for Resident Population in Whiteside County, IL (ILWHIT5POP) from 1970 to 2024 about Whiteside County, IL; IL; residents; population; and USA.