McHenry County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2023 (ACS-5Yrs)

Updated on March 26, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2023, the citizen voting-age population for McHenry County, IL was 227.06K. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (191.91K) and constituted 84.52% of the total.

The Hispanic or Latino of All Races ethnicity group had the second highest citizen voting-age population (23.19K) and constituted 10.21% of the total. The Non-Hispanic Asian Alone ethnicity group had the third highest (5.87K), constituting 2.59% 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:

McHenry County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2023

Non-Hispanic White Alone

Hispanic or Latino of All Races

Non-Hispanic Asian Alone

Non-Hispanic Black Alone

Non-Hispanic Two Or More Races

Non-Hispanic American Indian & Alaska Native Alone

Non-Hispanic Native Hawaiian & Pac. Islander Alone

McHenry County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2023

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Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	191910	84.52
Hispanic or Latino of All Races	23185	10.21
Non-Hispanic Asian Alone	5870	2.59
Non-Hispanic Black or African American Alone	3210	1.41
Non-Hispanic Two Or More Races	2760	1.22
Non-Hispanic American Indian and Alaska Native Alone	115	0.05
Non-Hispanic Native Hawaiian And Pacific Islander Alone	15	0.01