| Name | Yankton County |
| State | South Dakota |
| FIPS Code | 46135 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 22,434 |
| Population Growth Rate(2000-2022) | 3.89% |
| Majority Ethnicity | White 90.58% |
| Public School Majority Ethnicity | White 84% |
| Partisan Voting Index | Republican:+10 |
| Unemployment Rate | 1.3% |
| Race/Ethnicy | Percentage of Population (2018) |
|---|---|
| White | 90.58% |
| African American | 1.25% |
| Hispanic | 5.32% |
| Asian | 0.25% |
| Native American | 2.6% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicy | Percentage of Public School Students (2018) |
|---|---|
| White | 84.33% |
| African American | 1.38% |
| Hispanic | 6.73% |
| Asian | 0.91% |
| Native American | 4.25% |
| Hawaiin/Pacific Islander | 0% |