Clay, 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 13.29K population of Clay, IL residents comprised of 223 residents who identified as Hispanic or Latino (1.68%), and 13.07K residents who identified as Non-Hispanic (98.32%).

Race: The White Alone population was the largest racial group in Clay, IL, with a population of 12.52K (94.25%). The Two Or More Races population was the second largest racial group in Clay, IL, with a population of 507 (3.82%). The Some Other Race Alone population was the third largest racial group in Clay, IL, with a population of 97 (0.73%). The smallest racial group in Clay, IL was Native Hawaiian And Pacific Islander Alone with a population of 3 (0.02%).

Ethnicity: The Non-Hispanic - White Alone population was the largest ethnic group in Clay, IL, with a population of 12.48K (93.93%). The Non-Hispanic - Two or More Races population was the second largest ethnic group in Clay, IL, with a population of 426 (3.21%). The Hispanic - Two or More Races population was the third largest ethnic group in Clay, IL, with a population of 81 (0.61%). The smallest ethnic group in Clay, IL was Non-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 Clay, Illinois from the 2020 decennial census.

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

Clay, IL Hispanics and Non Hispanics Population in Census 2020
Total Population:
Clay, IL Racial Groups in Census 2020
Total Population:
Clay, IL Ethnicity Groups in Census 2020
Total Population:
Clay, IL Population of Racial Groups in Census 2020
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Race Population % of County Population
Black or African American Alone 38 0.29
White Alone 12524 94.25
American Indian and Alaska Native Alone 40 0.30
Asian Alone 79 0.60
Native Hawaiian And Pacific Islander Alone 3 0.02
Some Other Race Alone 97 0.73
Two Or More Races 507 3.82
Clay, IL Population of Ethnicity Groups in Census 2020
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Ethnicity Population % of County Population
Non-Hispanic - White Alone 12481 93.93
Non-Hispanic - Two or More Races 426 3.21
Hispanic - Two or More Races 81 0.61
Hispanic - Some Other Race Alone 79 0.60
Non-Hispanic - Asian Alone 77 0.58
Hispanic - White Alone 43 0.32
Non-Hispanic - American Indian & Alaska Native 33 0.25
Non-Hispanic - Black Alone 30 0.23
Non-Hispanic - Some Other Race Alone 18 0.14
Hispanic - Black Alone 8 0.06
Hispanic - American Indian & Alaska Native 7 0.05
Hispanic - Native Hawaiian & Pac. Islander 3 0.02
Hispanic - Asian Alone 2 0.02
Non-Hispanic - Native Hawaiian & Pac. Islander 0 0.00