| Place Name | Black River Township (Butler County) |
| Place Type | Township |
| ZIP Code(s) | 63901 63967 |
| County | Butler County |
| Area Code(s) | 573 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 2,111 |
| Majority Ethnicity | White 89.48% |
| Metro/Micro Stats Area | Poplar Bluff, MO |
| US Congressional District(s) | Missouri 8th |
| State House Districts | 153 |
| State Senate Districts | 25 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 89.48% |
| African American | 5.91% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 4.61% |