| Place Name | Lower Brule |
| Place Type | Census Designated Place |
| ZIP Code(s) | 57548 |
| County | Lyman County |
| Area Code(s) | 605 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 819 |
| Population Growth Rate (2010-19) | 14.68% |
| Majority Ethnicity | Native American 0.52% |
| US Congressional District(s) | South Dakota At-Large |
| State House Districts | 26B |
| State Senate Districts | 26 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 8.09% |
| African American | 0% |
| Hispanic | 89.32% |
| Asian | 0.73% |
| Native American | 0.52% |
| Hawaiin/Pacific Islander | 1.35% |