| Place Name | Jefferson Township (Maries County) |
| Place Type | Township |
| ZIP Code(s) | 65013 65014 65559 65580 65582 |
| County | Maries County |
| Area Code(s) | 573 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 2,469 |
| Majority Ethnicity | White 99.34% |
| US Congressional District(s) | Missouri 3rd |
| State House Districts | 62 |
| State Senate Districts | 6 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 99.34% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.66% |