Founded in 1881, Aurora County is one of 66 counties in the state of South Dakota. Historically, Aurora County was formed from Cragin and Wetmore Counties. The city of Plankinton is the county seat. With FIPS code of 3, Aurora County has a population of 2,748 and area of 708 square miles (1,834 km2).
List of all cities in Aurora County, SD alphabetically
| City/Town | Postal Code | Area Code |
| Aurora Center, SD | 57375 | 605 |
| Plankinton, SD | 57368 | 605 |
| Robey, SD | 57383 | 605 |
| Stickney, SD | 57375 | 605 |
| White Lake, SD | 57383 | 605 |