St. Clair County, Illinois Census 2020 Population By Race and Ethnicity
According to the data from the US 2020 decennial Census, in April 2020, the 257.40K population of St. Clair County, IL residents comprised of 12.58K residents who identified as Hispanic or Latino (4.89%), and 244.82K residents who identified as Non-Hispanic (95.11%).
Race: The White Alone population was the largest racial group in St. Clair County, IL, with a population of 153.38K (59.59%). The Black or African American Alone population was the second largest racial group in St. Clair County, IL, with a population of 76.56K (29.75%). The Two Or More Races population was the third largest racial group in St. Clair County, IL, with a population of 17.39K (6.76%). The smallest racial group in St. Clair County, IL was Native Hawaiian And Pacific Islander Alone with a population of 188 (0.07%).
Ethnicity: The Non-Hispanic - White Alone population was the largest ethnic group in St. Clair County, IL, with a population of 150.50K (58.47%). The Non-Hispanic - Black Alone population was the second largest ethnic group in St. Clair County, IL, with a population of 76.01K (29.53%). The Non-Hispanic - Two or More Races population was the third largest ethnic group in St. Clair County, IL, with a population of 12.86K (5.00%). The smallest ethnic group in St. Clair County, IL was Hispanic - Native Hawaiian & Pac. Islander with a population of 7 (0.00%).
The charts and tables below shows the population and percentage of each racial group and ethnicity group in St. Clair County, Illinois from the 2020 decennial census.
You can see similar information for other Illinois counties and also for the state of Illinois.
| Race | Population | % of County Population |
|---|---|---|
| Black or African American Alone | 76564 | 29.75 |
| White Alone | 153376 | 59.59 |
| American Indian and Alaska Native Alone | 881 | 0.34 |
| Asian Alone | 3711 | 1.44 |
| Native Hawaiian And Pacific Islander Alone | 188 | 0.07 |
| Some Other Race Alone | 5288 | 2.05 |
| Two Or More Races | 17392 | 6.76 |
| Ethnicity | Population | % of County Population |
|---|---|---|
| Non-Hispanic - White Alone | 150496 | 58.47 |
| Non-Hispanic - Black Alone | 76013 | 29.53 |
| Non-Hispanic - Two or More Races | 12863 | 5.00 |
| Hispanic - Two or More Races | 4529 | 1.76 |
| Hispanic - Some Other Race Alone | 4136 | 1.61 |
| Non-Hispanic - Asian Alone | 3623 | 1.41 |
| Hispanic - White Alone | 2880 | 1.12 |
| Non-Hispanic - Some Other Race Alone | 1152 | 0.45 |
| Hispanic - Black Alone | 551 | 0.21 |
| Non-Hispanic - American Indian & Alaska Native | 490 | 0.19 |
| Hispanic - American Indian & Alaska Native | 391 | 0.15 |
| Non-Hispanic - Native Hawaiian & Pac. Islander | 181 | 0.07 |
| Hispanic - Asian Alone | 88 | 0.03 |
| Hispanic - Native Hawaiian & Pac. Islander | 7 | 0.00 |