| Name | Marshall County |
| State | South Dakota |
| FIPS Code | 46091 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 4,631 |
| Population Growth Rate(2000-2022) | -7.52% |
| Majority Ethnicity | White 83.45% |
| Public School Majority Ethnicity | White 92% |
| Partisan Voting Index | Republican:+7 |
| Unemployment Rate | 3.7% |
| Race/Ethnicy | Percentage of Population (2018) |
|---|---|
| White | 83.45% |
| African American | 0.46% |
| Hispanic | 9.04% |
| Asian | 0.04% |
| Native American | 7.02% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicy | Percentage of Public School Students (2018) |
|---|---|
| White | 92.04% |
| African American | 0.96% |
| Hispanic | 2.07% |
| Asian | 0.48% |
| Native American | 1.91% |
| Hawaiin/Pacific Islander | 0.16% |