Population By Race and Ethnicity in St. Clair County, IL in 2012

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2012, the 268,748 population of St. Clair County, Illinois comprised of 9,492 people who identified as Hispanic (3.53%), and 259,256 people who identified as Non-Hispanic (96.47%).

Race: The White Alone population was the largest racial group in St. Clair County, Illinois with a population of 176,408 (65.64%); Black or African American Alone population was the second largest racial group with a population of 82,013 (30.52%); and Two Or More Races was the third largest racial group with a population of 5,805 (2.16%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in St. Clair County, Illinois in 2012, with a population of 168,489 (62.69%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 81,309 (30.26%); and the third largest ethnic group was White Alone - Hispanic with a population of 7,919 (2.95%).

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

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

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Hispanics and Non Hispanics in St. Clair County, IL in 2012
Total Population:
Race in St. Clair County, IL in 2012
Total Population:
Ethnicity in St. Clair County, IL in 2012
Total Population:
Population By Race in St. Clair , IL in 2012
Race Population Percentage
Black or African American Alone 82,013 30.52%
White Alone 176,408 65.64%
American Indian and Alaska Native Alone 804 0.3%
Asian Alone 3,471 1.29%
Native Hawaiian And Pacific Islander Alone 247 0.09%
Two Or More Races 5,805 2.16%
Population By Ethnicity in St. Clair , IL in 2012
Ethnicity Population Percentage
Black or African American Alone - Hispanic 704 0.26%
White Alone - Hispanic 7,919 2.95%
American Indian and Alaska Native Alone - Hispanic 254 0.1%
Asian Alone - Hispanic 125 0.05%
Native Hawaiian And Pacific Islander Alone - Hispanic 30 0.01%
Two Or More Races - Hispanic 460 0.17%
Black or African American Alone - Non Hispanic 81,309 30.26%
White Alone - Non Hispanic 168,489 62.69%
American Indian and Alaska Native Alone - Non Hispanic 550 0.21%
Asian Alone - Non Hispanic 3,346 1.25%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 217 0.08%
Two Or More Races - Non Hispanic 5,345 1.99%