| Name | Deuel County |
| State | South Dakota |
| FIPS Code | 46039 |
| County Seat | Clear Lake |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 4,345 |
| Population Growth Rate(2020-2024) | 1.01% |
| Majority Ethnicity | White 95.85% |
| Public School Majority Ethnicity | White 95% |
| Partisan Voting Index | Strongly Republican:+25 |
| Unemployment Rate (May 2026) | 4.0% |
| Sales Tax Rate (2025) | 6.2% |
| Area Code(s) | 605 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 95.85% |
| African American | 0.35% |
| Hispanic | 3.26% |
| Asian | 0.16% |
| Native American | 0.38% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 95.45% |
| African American | 0.4% |
| Hispanic | 2.94% |
| Asian | 0% |
| Native American | 0.8% |
| Hawaiin/Pacific Islander | 0% |