Stephenson 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 Stephenson County, IL was 34.75K. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (30.08K) and constituted 86.56% of the total.

The Non-Hispanic Black or African American Alone ethnicity group had the second highest citizen voting-age population (3.06K) and constituted 8.81% of the total. The Hispanic or Latino of All Races ethnicity group had the third highest (915), constituting 2.63% 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:

Stephenson 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

Stephenson 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	30080	86.56
Non-Hispanic Black or African American Alone	3060	8.81
Hispanic or Latino of All Races	915	2.63
Non-Hispanic Two Or More Races	500	1.44
Non-Hispanic Asian Alone	180	0.52
Non-Hispanic American Indian and Alaska Native Alone	25	0.07