| Name | Mellette County |
| State | South Dakota |
| FIPS Code | 46095 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 2,057 |
| Population Growth Rate(2000-2022) | -6.35% |
| Majority Ethnicity | Native American 65.34% |
| Public School Majority Ethnicity | Native American 86% |
| Partisan Voting Index | Republican:+9 |
| Unemployment Rate | 2.7% |
| Race/Ethnicy | Percentage of Population (2018) |
|---|---|
| White | 33.46% |
| African American | 0.26% |
| Hispanic | 0.68% |
| Asian | 0% |
| Native American | 65.34% |
| Hawaiin/Pacific Islander | 0.26% |
| Race/Ethnicy | Percentage of Public School Students (2018) |
|---|---|
| White | 7.42% |
| African American | 0.7% |
| Hispanic | 1.16% |
| Asian | 0.23% |
| Native American | 85.61% |
| Hawaiin/Pacific Islander | 0.23% |