McHenry County, Illinois Diversity Indicators (2024)

Total Population

312,591

Diversity Score

39.3

Diversity Tier

Moderate-Low

Largest Group

White (Non-Hispanic)
76.1%%

McHenry County, Illinois Racial & Ethnic Breakdown

Bar chart showing racial distribution in  for 2024
Figure 1: Percentage breakdown of the population by race and ethnicity in (2024).


McHenry County, Illinois Population by Race & Ethnicity

Race / EthnicityPopulationPercentage
White (Non-Hispanic)237,82276.1%
Hispanic or Latino50,24316.1%
Two or More Races9,8753.2%
Asian9,4413.0%
Black / African American4,3151.4%
Other Race7290.2%
Native American1300.0%
Pacific Islander360.0%


Diversity & Demographics FAQs for McHenry County, Illinois

The largest racial or ethnic group in McHenry County, Illinois is White (Non-Hispanic), which makes up 76.1% of the total population.

Since 2010, the diversity index for McHenry County, Illinois has increased significantly. The area currently has a diversity score of 39.3/100, which is considered a Moderate-Low level of diversity.
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