| Place Name | St. Peters Township |
| Place Type | Township |
| ZIP Code(s) | 63304 63376 |
| County | Saint Charles County |
| Area Code(s) | 636 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 19,191 |
| Majority Ethnicity | White 89.88% |
| Metro/Micro Stats Area | St. Louis, MO-IL |
| US Congressional District(s) | Missouri 2ndMissouri 3rd |
| State House Districts | 104 |
| State Senate Districts | 23 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 89.88% |
| African American | 4.97% |
| Hispanic | 0.35% |
| Asian | 1.54% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 3.27% |