Population By Race and Ethnicity in St. Clair County, IL in 2016

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2016, the 263,482 population of St. Clair County, Illinois comprised of 10,478 people who identified as Hispanic (3.98%), and 253,004 people who identified as Non-Hispanic (96.02%).

Race: The White Alone population was the largest racial group in St. Clair County, Illinois with a population of 172,248 (65.37%); Black or African American Alone population was the second largest racial group with a population of 80,109 (30.4%); and Two Or More Races was the third largest racial group with a population of 6,288 (2.39%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in St. Clair County, Illinois in 2016, with a population of 163,560 (62.08%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 79,361 (30.12%); and the third largest ethnic group was White Alone - Hispanic with a population of 8,688 (3.3%).

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 2016
Total Population:
Race in St. Clair County, IL in 2016
Total Population:
Ethnicity in St. Clair County, IL in 2016
Total Population:
Population By Race in St. Clair , IL in 2016
Race Population Percentage
Black or African American Alone 80,109 30.4%
White Alone 172,248 65.37%
American Indian and Alaska Native Alone 923 0.35%
Asian Alone 3,658 1.39%
Native Hawaiian And Pacific Islander Alone 256 0.1%
Two Or More Races 6,288 2.39%
Population By Ethnicity in St. Clair , IL in 2016
Ethnicity Population Percentage
Black or African American Alone - Hispanic 748 0.28%
White Alone - Hispanic 8,688 3.3%
American Indian and Alaska Native Alone - Hispanic 311 0.12%
Asian Alone - Hispanic 129 0.05%
Native Hawaiian And Pacific Islander Alone - Hispanic 37 0.01%
Two Or More Races - Hispanic 565 0.21%
Black or African American Alone - Non Hispanic 79,361 30.12%
White Alone - Non Hispanic 163,560 62.08%
American Indian and Alaska Native Alone - Non Hispanic 612 0.23%
Asian Alone - Non Hispanic 3,529 1.34%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 219 0.08%
Two Or More Races - Non Hispanic 5,723 2.17%