Population By Race and Ethnicity in St. Clair County, IL in 2022

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2022, the 252,265 population of St. Clair County, Illinois comprised of 12,696 people who identified as Hispanic (5.03%), and 239,569 people who identified as Non-Hispanic (94.97%).

Race: The White Alone population was the largest racial group in St. Clair County, Illinois with a population of 162,247 (64.32%); Black or African American Alone population was the second largest racial group with a population of 77,406 (30.68%); and Two Or More Races was the third largest racial group with a population of 7,320 (2.9%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in St. Clair County, Illinois in 2022, with a population of 151,779 (60.17%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 76,488 (30.32%); and the third largest ethnic group was White Alone - Hispanic with a population of 10,468 (4.15%).

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 2022
Total Population:
Race in St. Clair County, IL in 2022
Total Population:
Ethnicity in St. Clair County, IL in 2022
Total Population:
Population By Race in St. Clair , IL in 2022
Race Population Percentage
Black or African American Alone 77,406 30.68%
White Alone 162,247 64.32%
American Indian and Alaska Native Alone 1,002 0.4%
Asian Alone 4,041 1.6%
Native Hawaiian And Pacific Islander Alone 249 0.1%
Two Or More Races 7,320 2.9%
Population By Ethnicity in St. Clair , IL in 2022
Ethnicity Population Percentage
Black or African American Alone - Hispanic 918 0.36%
White Alone - Hispanic 10,468 4.15%
American Indian and Alaska Native Alone - Hispanic 379 0.15%
Asian Alone - Hispanic 152 0.06%
Native Hawaiian And Pacific Islander Alone - Hispanic 40 0.02%
Two Or More Races - Hispanic 739 0.29%
Black or African American Alone - Non Hispanic 76,488 30.32%
White Alone - Non Hispanic 151,779 60.17%
American Indian and Alaska Native Alone - Non Hispanic 623 0.25%
Asian Alone - Non Hispanic 3,889 1.54%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 209 0.08%
Two Or More Races - Non Hispanic 6,581 2.61%