| Place Name | Southwest Sioux |
| Place Type | Unincorporated Territory |
| ZIP Code(s) | 57642 58529 58538 58562 58568 |
| County | Sioux County |
| Area Code(s) | 701 |
| Timezone | (UTC) |
| Population (2021) | 201 |
| Majority Ethnicity | White 79.5% |
| US Congressional District(s) | North Dakota At-Large |
| State House Districts | 31 |
| State Senate Districts | 31 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 79.5% |
| African American | 0% |
| Hispanic | 19% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.5% |