| Name | Roberts County |
| State | South Dakota |
| FIPS Code | 46109 |
| County Seat | Sisseton |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 10,222 |
| Population Growth Rate(2020-2024) | -0.59% |
| Majority Ethnicity | White 59.54% |
| Public School Majority Ethnicity | Native American 53% |
| Partisan Voting Index | Republican:+10 |
| Unemployment Rate (May 2026) | 4.3% |
| Area Code(s) | 605 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 59.54% |
| African American | 0.34% |
| Hispanic | 2.44% |
| Asian | 0.19% |
| Native American | 37.48% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 32.97% |
| African American | 0.24% |
| Hispanic | 4.69% |
| Asian | 0.14% |
| Native American | 52.91% |
| Hawaiin/Pacific Islander | 0% |