McHenry County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2024 (ACS-5Yrs)

Updated on March 26, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2024, the citizen voting-age population for McHenry County, IL was 227.71K. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (191.68K) and constituted 84.18% of the total.

The Hispanic or Latino of All Races ethnicity group had the second highest citizen voting-age population (23.50K) and constituted 10.32% of the total. The Non-Hispanic Asian Alone ethnicity group had the third highest (6.15K), constituting 2.70% 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 2024

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 2024

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Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	191677	84.18
Hispanic or Latino of All Races	23503	10.32
Non-Hispanic Asian Alone	6148	2.70
Non-Hispanic Black or African American Alone	3327	1.46
Non-Hispanic Two Or More Races	2913	1.28
Non-Hispanic American Indian and Alaska Native Alone	96	0.04
Non-Hispanic Native Hawaiian And Pacific Islander Alone	36	0.02