Cook County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2021 (ACS-5Yrs)

Updated on March 26, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2021, the citizen voting-age population for Cook County, IL was 3.62M. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (1.76M) and constituted 48.55% of the total.

The Non-Hispanic Black or African American Alone ethnicity group had the second highest citizen voting-age population (904.96K) and constituted 25.00% of the total. The Hispanic or Latino of All Races ethnicity group had the third highest (674.91K), constituting 18.65% of the total citizen voting-age population.

The charts and tables below shows the citizen voting-age population and percentages by race and ethnicity.

You can also see similar information for other Illinois counties, and for Illinois.

Data Source: US Census - ACS 5-Years (CVAP).

See this for other years:

Cook County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2021

Non-Hispanic White Alone

Non-Hispanic Black Alone

Hispanic or Latino of All Races

Non-Hispanic Asian Alone

Non-Hispanic Two Or More Races

Non-Hispanic American Indian & Alaska Native Alone

Non-Hispanic Native Hawaiian & Pac. Islander Alone

Cook County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2021

0 of 0

Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	1757505	48.55
Non-Hispanic Black or African American Alone	904960	25.00
Hispanic or Latino of All Races	674910	18.65
Non-Hispanic Asian Alone	223305	6.17
Non-Hispanic Two Or More Races	54810	1.51
Non-Hispanic American Indian and Alaska Native Alone	3240	0.09
Non-Hispanic Native Hawaiian And Pacific Islander Alone	1080	0.03