Population By Race and Ethnicity in McHenry County, IL in 2018

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2018, the 308,145 population of McHenry County, Illinois comprised of 41,286 people who identified as Hispanic (13.4%), and 266,859 people who identified as Non-Hispanic (86.6%).

Race: The White Alone population was the largest racial group in McHenry County, Illinois with a population of 286,992 (93.14%); Asian Alone population was the second largest racial group with a population of 9,180 (2.98%); and Black or African American Alone was the third largest racial group with a population of 5,211 (1.69%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in McHenry County, Illinois in 2018, with a population of 248,613 (80.68%); the second largest ethnic group was White Alone - Hispanic with a population of 38,379 (12.46%); and the third largest ethnic group was Asian Alone - Non Hispanic with a population of 8,913 (2.89%).

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 2018
Total Population:
Race in McHenry County, IL in 2018
Total Population:
Ethnicity in McHenry County, IL in 2018
Total Population:
Population By Race in McHenry , IL in 2018
Race Population Percentage
Black or African American Alone 5,211 1.69%
White Alone 286,992 93.14%
American Indian and Alaska Native Alone 1,564 0.51%
Asian Alone 9,180 2.98%
Native Hawaiian And Pacific Islander Alone 147 0.05%
Two Or More Races 5,051 1.64%
Population By Ethnicity in McHenry , IL in 2018
Ethnicity Population Percentage
Black or African American Alone - Hispanic 624 0.2%
White Alone - Hispanic 38,379 12.46%
American Indian and Alaska Native Alone - Hispanic 1,082 0.35%
Asian Alone - Hispanic 267 0.09%
Native Hawaiian And Pacific Islander Alone - Hispanic 53 0.02%
Two Or More Races - Hispanic 881 0.29%
Black or African American Alone - Non Hispanic 4,587 1.49%
White Alone - Non Hispanic 248,613 80.68%
American Indian and Alaska Native Alone - Non Hispanic 482 0.16%
Asian Alone - Non Hispanic 8,913 2.89%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 94 0.03%
Two Or More Races - Non Hispanic 4,170 1.35%