| Place Name | Armour |
| Place Type | City |
| ZIP Code(s) | 57313 |
| County | Douglas County |
| Area Code(s) | 605 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 650 |
| Population Growth Rate (2010-19) | -0.14% |
| Majority Ethnicity | White 90.2% |
| US Congressional District(s) | South Dakota At-Large |
| State House Districts | 19 |
| State Senate Districts | 19 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 90.2% |
| African American | 6.05% |
| Hispanic | 2.02% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.73% |