Population By Race and Ethnicity in St. Clair County, IL in 2020
Based on the US Census Vintage data estimates, in 2020, the 256,844 population of St. Clair County, Illinois comprised of 12,547 people who identified as Hispanic (4.89%), and 244,297 people who identified as Non-Hispanic (95.12%).
Race: The White Alone population was the largest racial group in St. Clair County, Illinois with a population of 165,812 (64.56%); Black or African American Alone population was the second largest racial group with a population of 78,782 (30.67%); and Two Or More Races was the third largest racial group with a population of 7,033 (2.74%).
Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in St. Clair County, Illinois in 2020, with a population of 155,470 (60.53%); the second largest ethnic group was Black or African American Alone - Non Hispanic with a population of 77,841 (30.31%); and the third largest ethnic group was White Alone - Hispanic with a population of 10,342 (4.03%).
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.
| Race | Population | Percentage |
|---|---|---|
| Black or African American Alone | 78,782 | 30.67% |
| White Alone | 165,812 | 64.56% |
| American Indian and Alaska Native Alone | 1,010 | 0.39% |
| Asian Alone | 3,967 | 1.55% |
| Native Hawaiian And Pacific Islander Alone | 240 | 0.09% |
| Two Or More Races | 7,033 | 2.74% |
| Ethnicity | Population | Percentage |
|---|---|---|
| Black or African American Alone - Hispanic | 941 | 0.37% |
| White Alone - Hispanic | 10,342 | 4.03% |
| American Indian and Alaska Native Alone - Hispanic | 379 | 0.15% |
| Asian Alone - Hispanic | 147 | 0.06% |
| Native Hawaiian And Pacific Islander Alone - Hispanic | 38 | 0.02% |
| Two Or More Races - Hispanic | 700 | 0.27% |
| Black or African American Alone - Non Hispanic | 77,841 | 30.31% |
| White Alone - Non Hispanic | 155,470 | 60.53% |
| American Indian and Alaska Native Alone - Non Hispanic | 631 | 0.25% |
| Asian Alone - Non Hispanic | 3,820 | 1.49% |
| Native Hawaiian And Pacific Islander Alone - Non Hispanic | 202 | 0.08% |
| Two Or More Races - Non Hispanic | 6,333 | 2.47% |