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

This map shows the population density in Chicago by census tracts in 2010. Population Density is measured by people per square mile. The red shape that pops up in the map is the location of DePaul University's Department of Geography.

Graduated color map of population density in Chicago in 2010, data from U.S. Census

A dataset listing Illinois counties by population for 2024.

Chicago Population Density in 2010

Resident Population in Illinois was 12710.15800 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Illinois reached a record high of 12895.77800 in January of 2013 and a record low of 4828.00000 in January of 1900. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Illinois - last updated from the United States Federal Reserve on July of 2025.

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. County subdivisions are the primary divisions of counties and their 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. For the 2010 Census, the MCDs are the primary governmental and/or administrative divisions of counties in 29 States and Puerto Rico; Tennessee changed from having CCDs for Census 2000 to having MCDs for the 2010 Census. 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, 2023, 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.

Resident Population in Lake County, IL was 718.60400 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Lake County, IL reached a record high of 718.60400 in January of 2024 and a record low of 382.63800 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Lake County, IL - last updated from the United States Federal Reserve on July of 2025.

Lake County, Illinois Demographic Data. Explanation of field attributes: Total Population – The entire population of Lake County. White – Individuals who are of Caucasian race. This is a percent.African American – Individuals who are of African American race. This is a percent.Asian – Individuals who are of Asian race. This is a percent. Hispanic – Individuals who are of Hispanic ethnicity. This is a percent. Does not Speak English- Individuals who speak a language other than English in their household. This is a percent. Under 5 years of age – Individuals who are under 5 years of age. This is a percent. Under 18 years of age – Individuals who are under 18 years of age. This is a percent. 18-64 years of age – Individuals who are between 18 and 64 years of age. This is a percent. 65 years of age and older – Individuals who are 65 years old or older. This is a percent. Male – Individuals who are male in gender. This is a percent. Female – Individuals who are female in gender. This is a percent. High School Degree – Individuals who have obtained a high school degree. This is a percent. Associate Degree – Individuals who have obtained an associate degree. This is a percent. Bachelor’s Degree or Higher – Individuals who have obtained a bachelor’s degree or higher. This is a percent. Utilizes Food Stamps – Households receiving food stamps/ part of SNAP (Supplemental Nutrition Assistance Program). This is a percent. Median Household Income - A median household income refers to the income level earned by a given household where half of the homes in the area earn more and half earn less. This is a dollar amount. No High School – Individuals who have not obtained a high school degree. This is a percent. Poverty – Poverty refers to families and people whose income in the past 12 months is below the poverty level. This is a percent.

U.S. Census Bureau QuickFacts statistics for Bensenville village, Illinois. QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

U.S. Census Bureau QuickFacts statistics for Plano city, Illinois. QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

Resident Population for all Illinois counties in Federal Reserve District 8: St. Louis was 1395.22300 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population for all Illinois counties in Federal Reserve District 8: St. Louis reached a record high of 1489.55000 in January of 1981 and a record low of 1395.22300 in January of 2024. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population for all Illinois counties in Federal Reserve District 8: St. Louis - last updated from the United States Federal Reserve on June of 2025.

U.S. Census Bureau QuickFacts statistics for East St. Louis city, Illinois. QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

State of Illinois Obesity Percentages by County. Explanation of field attributes: Obesity - The percent of each Illinois county’s population that is considered obese from the 2015 CDC BRFSS Survey.

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. Congressional districts are the 435 areas from which people are elected to the U.S. House of Representatives. After the apportionment of congressional seats among the states based on census population counts, each state is responsible for establishing congressional districts for the purpose of electing representatives. Each congressional district is to be as equal in population to all other congressional districts in a state as practicable. The 118th Congress is seated from January 2023 through December 2024. In Connecticut, Illinois, and New Hampshire, the Redistricting Data Program (RDP) participant did not define the CDs to cover all of the state or state equivalent area. In these areas with no CDs defined, the code "ZZ" has been assigned, which is treated as a single CD for purposes of data presentation. The TIGER/Line shapefiles for the District of Columbia, Puerto Rico, and the Island Areas (American Samoa, Guam, the Commonwealth of the Northern Mariana Islands, and the U.S. Virgin Islands) each contain a single record for the non-voting delegate district in these areas. The boundaries of all other congressional districts reflect information provided to the Census Bureau by the states by August 31, 2022.

Population Estimate, Total, Hispanic or Latino (5-year estimate) in Champaign County, IL was 16628.00000 Persons in January of 2023, according to the United States Federal Reserve. Historically, Population Estimate, Total, Hispanic or Latino (5-year estimate) in Champaign County, IL reached a record high of 16628.00000 in January of 2023 and a record low of 7785.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Hispanic or Latino (5-year estimate) in Champaign County, IL - last updated from the United States Federal Reserve on July of 2025.

Population Estimate, Total, Hispanic or Latino (5-year estimate) in Kankakee County, IL was 12948.00000 Persons in January of 2023, according to the United States Federal Reserve. Historically, Population Estimate, Total, Hispanic or Latino (5-year estimate) in Kankakee County, IL reached a record high of 12948.00000 in January of 2023 and a record low of 7868.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Hispanic or Latino (5-year estimate) in Kankakee County, IL - last updated from the United States Federal Reserve on July of 2025.

U.S. Census Bureau QuickFacts statistics for St. Clair County, Illinois. QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

Du Page County, IL - Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in DuPage County, IL was 45002.00000 Persons in January of 2023, according to the United States Federal Reserve. Historically, Du Page County, IL - Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in DuPage County, IL reached a record high of 45002.00000 in January of 2023 and a record low of 38518.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Du Page County, IL - Population Estimate, Total, Not Hispanic or Latino, Black or African American Alone (5-year estimate) in DuPage County, IL - last updated from the United States Federal Reserve on July of 2025.

Population Estimate, Total, Hispanic or Latino (5-year estimate) in Lee County, IL was 2443.00000 Persons in January of 2023, according to the United States Federal Reserve. Historically, Population Estimate, Total, Hispanic or Latino (5-year estimate) in Lee County, IL reached a record high of 2443.00000 in January of 2023 and a record low of 1469.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Hispanic or Latino (5-year estimate) in Lee County, IL - last updated from the United States Federal Reserve on July of 2025.