| Place Name | West Sully |
| Place Type | Unincorporated Territory |
| ZIP Code(s) | 57442 57501 57520 57564 |
| County | Sully County |
| Area Code(s) | 605 |
| Timezone | (UTC) |
| Population (2021) | 378 |
| Majority Ethnicity | White 95.92% |
| US Congressional District(s) | South Dakota At-Large |
| State House Districts | 24 |
| State Senate Districts | 24 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.92% |
| African American | 0% |
| Hispanic | 4.08% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |