Boone 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 Boone County, IL was 37.63K. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (30.30K) and constituted 80.51% of the total.

The Hispanic or Latino of All Races ethnicity group had the second highest citizen voting-age population (5.48K) and constituted 14.56% of the total. The Non-Hispanic Black or African American Alone ethnicity group had the third highest (925), constituting 2.46% 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:

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

Non-Hispanic White Alone

Hispanic or Latino of All Races

Non-Hispanic Black Alone

Non-Hispanic Asian Alone

Non-Hispanic Two Or More Races

Non-Hispanic American Indian & Alaska Native Alone

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

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Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	30295	80.51
Hispanic or Latino of All Races	5480	14.56
Non-Hispanic Black or African American Alone	925	2.46
Non-Hispanic Asian Alone	430	1.14
Non-Hispanic Two Or More Races	430	1.14
Non-Hispanic American Indian and Alaska Native Alone	70	0.19