Population By Race and Ethnicity in Cook County, IL in 2015

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2015, the 5,243,371 population of Cook County, Illinois comprised of 1,301,713 people who identified as Hispanic (24.83%), and 3,941,658 people who identified as Non-Hispanic (75.17%).

Race: The White Alone population was the largest racial group in Cook County, Illinois with a population of 3,434,526 (65.5%); Black or African American Alone population was the second largest racial group with a population of 1,279,297 (24.4%); and Asian Alone was the third largest racial group with a population of 387,848 (7.4%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Cook County, Illinois in 2015, with a population of 2,245,903 (42.83%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 1,235,734 (23.57%); and the third largest ethnic group was White Alone - Hispanic with a population of 1,188,623 (22.67%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Cook, Illinois.

You can find similar information for other Illinois counties, and for Illinois.

See this for other years:
Hispanics and Non Hispanics in Cook County, IL in 2015
Total Population:
Race in Cook County, IL in 2015
Total Population:
Ethnicity in Cook County, IL in 2015
Total Population:
Population By Race in Cook , IL in 2015
Race Population Percentage
Black or African American Alone 1,279,297 24.4%
White Alone 3,434,526 65.5%
American Indian and Alaska Native Alone 39,196 0.75%
Asian Alone 387,848 7.4%
Native Hawaiian And Pacific Islander Alone 3,843 0.07%
Two Or More Races 98,661 1.88%
Population By Ethnicity in Cook , IL in 2015
Ethnicity Population Percentage
Black or African American Alone - Hispanic 43,563 0.83%
White Alone - Hispanic 1,188,623 22.67%
American Indian and Alaska Native Alone - Hispanic 32,686 0.62%
Asian Alone - Hispanic 9,342 0.18%
Native Hawaiian And Pacific Islander Alone - Hispanic 2,842 0.05%
Two Or More Races - Hispanic 24,657 0.47%
Black or African American Alone - Non Hispanic 1,235,734 23.57%
White Alone - Non Hispanic 2,245,903 42.83%
American Indian and Alaska Native Alone - Non Hispanic 6,510 0.12%
Asian Alone - Non Hispanic 378,506 7.22%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 1,001 0.02%
Two Or More Races - Non Hispanic 74,004 1.41%