Population By Race and Ethnicity in McHenry County, IL in 2015

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2015, the 307,595 population of McHenry County, Illinois comprised of 38,129 people who identified as Hispanic (12.4%), and 269,466 people who identified as Non-Hispanic (87.6%).

Race: The White Alone population was the largest racial group in McHenry County, Illinois with a population of 288,262 (93.72%); Asian Alone population was the second largest racial group with a population of 8,601 (2.8%); and Black or African American Alone was the third largest racial group with a population of 4,586 (1.49%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in McHenry County, Illinois in 2015, with a population of 252,701 (82.15%); the second largest ethnic group was White Alone - Hispanic with a population of 35,561 (11.56%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 8,360 (2.72%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in McHenry, Illinois.

You can find similar information for other Illinois counties, and for Illinois.

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Hispanics and Non Hispanics in McHenry County, IL in 2015
Total Population:
Race in McHenry County, IL in 2015
Total Population:
Ethnicity in McHenry County, IL in 2015
Total Population:
Population By Race in McHenry , IL in 2015
Race Population Percentage
Black or African American Alone 4,586 1.49%
White Alone 288,262 93.72%
American Indian and Alaska Native Alone 1,418 0.46%
Asian Alone 8,601 2.8%
Native Hawaiian And Pacific Islander Alone 164 0.05%
Two Or More Races 4,564 1.48%
Population By Ethnicity in McHenry , IL in 2015
Ethnicity Population Percentage
Black or African American Alone - Hispanic 517 0.17%
White Alone - Hispanic 35,561 11.56%
American Indian and Alaska Native Alone - Hispanic 963 0.31%
Asian Alone - Hispanic 241 0.08%
Native Hawaiian And Pacific Islander Alone - Hispanic 57 0.02%
Two Or More Races - Hispanic 790 0.26%
Black or African American Alone - Non Hispanic 4,069 1.32%
White Alone - Non Hispanic 252,701 82.15%
American Indian and Alaska Native Alone - Non Hispanic 455 0.15%
Asian Alone - Non Hispanic 8,360 2.72%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 107 0.04%
Two Or More Races - Non Hispanic 3,774 1.23%