| Place Name | Centreville Township |
| Place Type | Township |
| County | Saint Clair County |
| Area Code(s) | 618 |
| Timezone | Central Standard Time (CST) |
| Population (2021) | 20,760 |
| Majority Ethnicity | African American 71.73% |
| Metro/Micro Stats Area | St. Louis, MO-IL |
| US Congressional District(s) | Illinois 12th |
| State House Districts | 113,114,116 |
| State Senate Districts | 57,58 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 25.84% |
| African American | 71.73% |
| Hispanic | 0.32% |
| Asian | 1.36% |
| Native American | 0.04% |
| Hawaiin/Pacific Islander | 0.71% |