| Place Name | Lower Brule (Lyman County) |
| Place Type | Unincorporated Territory |
| ZIP Code(s) | 57544 57548 57568 |
| County | Lyman County |
| Area Code(s) | 605 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 1,746 |
| Majority Ethnicity | Native American 0.29% |
| US Congressional District(s) | South Dakota At-Large |
| State House Districts | 26B |
| State Senate Districts | 26 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 7% |
| African American | 0% |
| Hispanic | 90.97% |
| Asian | 0.64% |
| Native American | 0.29% |
| Hawaiin/Pacific Islander | 1.1% |