How many people live in Aurora County, SD?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 2,800 people living in Aurora County, SD. That makes Aurora County the 50th-most populous county in South Dakota. It is home to 0.29% of people living in the state.
2.75K
population of Aurora County, SD (2024)
0.29%
County share of the South Dakota population (2024)
About 2,800 people lived in Aurora County, SD in 2024.
Population estimates, 2000–2024
What are Aurora County, SD’s age demographics?
About 568 Aurora County, SD residents are aged 65 and older in 2024. That represents 20.6% of its population. For comparison, the age group represents 18.9% of South Dakota’s population and 18% in the US overall.
Another 691 Aurora County residents, or 25.1% of the population, were children under 18. For comparison, the age group represents 24% of South Dakota’s population and 21.6% in the US overall.
A higher share of Aurora County, SD's population is aged under 18 than the US as a whole.
Population estimates by age group, (2024)
What are Aurora County, SD’s racial and ethnic demographics?
Non-Hispanic white residents make up 85.5% of the Aurora County, SD population, higher than the national share of 57.5%. Aurora County, SD also has a larger share of people identifying as non-Hispanic American Indian and Alaska Native (2.5%) than the US overall (0.72%).
In contrast, Aurora County’s non-Hispanic Black or African American population accounts for 1%, below the 12.6% nationwide, and the Hispanic population makes up 8.5% of the county, compared with 20% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Aurora County, SD has a higher share of a non-Hispanic white population than South Dakota as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Aurora County, SD is Plankinton with about 763 residents in 2024.
Cities and towns in Aurora County, SD ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Plankinton | 763 |
| 2. | White Lake | 396 |
| 3. | Stickney | 313 |
| 4. | Plankinton | 211 |
| 5. | Aurora | 108 |
| 6. | White Lake | 85 |
| 7. | Dudley | 83 |
| 8. | Center | 79 |
| 9. | Belford | 74 |
| 10. | Palatine | 68 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
