| Place Name | Selby |
| Place Type | City |
| ZIP Code(s) | 57472 |
| County | Walworth County |
| Area Code(s) | 605 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 673 |
| Population Growth Rate (2010-19) | -4.98% |
| Majority Ethnicity | White 88.14% |
| US Congressional District(s) | South Dakota At-Large |
| State House Districts | 23 |
| State Senate Districts | 23 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 88.14% |
| African American | 0% |
| Hispanic | 3.39% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 8.47% |