McHenry County, Illinois Citizen Voting-age Population By Race and Ethnicity in 2017 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2017, the citizen voting-age population for McHenry County, IL was 219.90K. The Non-Hispanic White Alone ethnicity group had the highest citizen voting-age population (194.54K) and constituted 88.47% of the total.

The Hispanic or Latino of All Races ethnicity group had the second highest citizen voting-age population (15.80K) and constituted 7.19% of the total. The Non-Hispanic Asian Alone ethnicity group had the third highest (4.94K), constituting 2.25% 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 2017

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 2017

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Ethnicity	Voting-age Population	% of Voting-age Pop.
Non-Hispanic White Alone	194540	88.47
Hispanic or Latino of All Races	15800	7.19
Non-Hispanic Asian Alone	4940	2.25
Non-Hispanic Black or African American Alone	2500	1.14
Non-Hispanic Two Or More Races	1940	0.88
Non-Hispanic American Indian and Alaska Native Alone	170	0.08
Non-Hispanic Native Hawaiian And Pacific Islander Alone	10	0.01