| Place Name | Monroe Township (Lincoln County) |
| Place Type | Township |
| County | Lincoln County |
| Area Code(s) | 636 |
| Timezone | Central Standard Time (CST) |
| Population (2021) | 11,663 |
| Majority Ethnicity | White 93.18% |
| Metro/Micro Stats Area | St. Louis, MO-IL |
| US Congressional District(s) | Missouri 3rd |
| State House Districts | 41,64 |
| State Senate Districts | 10 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 93.18% |
| African American | 3.86% |
| Hispanic | 0% |
| Asian | 0.74% |
| Native American | 0.58% |
| Hawaiin/Pacific Islander | 1.64% |