Jefferson County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2020 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2020, the citizen voting-age population for Jefferson County, IL was 29.18K. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (25.50K) and constituted 87.39% of the total.

The Non-Hispanic Black or African American Alone ethnicity group had the second highest citizen voting-age population (2.32K) and constituted 7.93% of the total. The Hispanic or Latino of All Races ethnicity group had the third highest (665), constituting 2.28% 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:

Jefferson County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2020

Non-Hispanic White Alone

Non-Hispanic Black Alone

Hispanic or Latino of All Races

Non-Hispanic Two Or More Races

Non-Hispanic Asian Alone

Non-Hispanic American Indian & Alaska Native Alone

Non-Hispanic Native Hawaiian & Pac. Islander Alone

Jefferson County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2020

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Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	25500	87.39
Non-Hispanic Black or African American Alone	2315	7.93
Hispanic or Latino of All Races	665	2.28
Non-Hispanic Two Or More Races	400	1.37
Non-Hispanic Asian Alone	265	0.91
Non-Hispanic American Indian and Alaska Native Alone	30	0.10
Non-Hispanic Native Hawaiian And Pacific Islander Alone	4	0.01