| Name | Day County |
| State | South Dakota |
| FIPS Code | 46037 |
| County Seat | Webster |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 5,445 |
| Population Growth Rate(2020-2024) | 0.02% |
| Majority Ethnicity | White 87.32% |
| Public School Majority Ethnicity | White 68% |
| Partisan Voting Index | Republican:+15 |
| Unemployment Rate (May 2026) | 3.2% |
| Sales Tax Rate (2025) | 4.2% |
| Area Code(s) | 605 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 87.32% |
| African American | 0.06% |
| Hispanic | 2.72% |
| Asian | 0.17% |
| Native American | 9.74% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 68.01% |
| African American | 0.12% |
| Hispanic | 1.96% |
| Asian | 0.12% |
| Native American | 24.94% |
| Hawaiin/Pacific Islander | 0.12% |