Clark, Illinois Census 2020 Population By Race and Ethnicity

Updated on February 22, 2026.

According to the data from the US 2020 decennial Census, in April 2020, the 15.46K population of Clark, IL residents comprised of 246 residents who identified as Hispanic or Latino (1.59%), and 15.21K residents who identified as Non-Hispanic (98.41%).

Race: The White Alone population was the largest racial group in Clark, IL, with a population of 14.78K (95.66%). The Two Or More Races population was the second largest racial group in Clark, IL, with a population of 430 (2.78%). The Some Other Race Alone population was the third largest racial group in Clark, IL, with a population of 99 (0.64%). The smallest racial group in Clark, IL was Native Hawaiian And Pacific Islander Alone with a population of 0 (0.00%).

Ethnicity: The Non-Hispanic - White Alone population was the largest ethnic group in Clark, IL, with a population of 14.68K (94.99%). The Non-Hispanic - Two or More Races population was the second largest ethnic group in Clark, IL, with a population of 365 (2.36%). The Hispanic - White Alone population was the third largest ethnic group in Clark, IL, with a population of 104 (0.67%). The smallest ethnic group in Clark, IL was Hispanic - Native Hawaiian & Pac. Islander with a population of 0 (0.00%).

The charts and tables below shows the population and percentage of each racial group and ethnicity group in Clark, Illinois from the 2020 decennial census.

You can see similar information for other Illinois counties and also for the state of Illinois.

Clark, IL Hispanics and Non Hispanics Population in Census 2020
Total Population:
Clark, IL Racial Groups in Census 2020
Total Population:
Clark, IL Ethnicity Groups in Census 2020
Total Population:
Clark, IL Population of Racial Groups in Census 2020
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Race Population % of County Population
Black or African American Alone 54 0.35
White Alone 14784 95.66
American Indian and Alaska Native Alone 28 0.18
Asian Alone 60 0.39
Native Hawaiian And Pacific Islander Alone 0 0.00
Some Other Race Alone 99 0.64
Two Or More Races 430 2.78
Clark, IL Population of Ethnicity Groups in Census 2020
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Ethnicity Population % of County Population
Non-Hispanic - White Alone 14680 94.99
Non-Hispanic - Two or More Races 365 2.36
Hispanic - White Alone 104 0.67
Hispanic - Some Other Race Alone 69 0.45
Hispanic - Two or More Races 65 0.42
Non-Hispanic - Black Alone 54 0.35
Non-Hispanic - Asian Alone 52 0.34
Non-Hispanic - Some Other Race Alone 30 0.19
Non-Hispanic - American Indian & Alaska Native 28 0.18
Hispanic - Asian Alone 8 0.05
Hispanic - Black Alone 0 0.00
Hispanic - American Indian & Alaska Native 0 0.00
Non-Hispanic - Native Hawaiian & Pac. Islander 0 0.00
Hispanic - Native Hawaiian & Pac. Islander 0 0.00