| Place Name | Rock Township |
| Place Type | Township |
| County | Jefferson County |
| Area Code(s) | 636 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 33,125 |
| Majority Ethnicity | White 95.6% |
| Metro/Micro Stats Area | St. Louis, MO-IL |
| US Congressional District(s) | Missouri 3rdMissouri 2nd |
| State House Districts | 97,112 |
| State Senate Districts | 22 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.6% |
| African American | 1.58% |
| Hispanic | 0.15% |
| Asian | 0.52% |
| Native American | 0.03% |
| Hawaiin/Pacific Islander | 2.13% |