Aurora County's 2026 population is estimated at 2,811, reflecting a 0.36% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Aurora County is the 50th largest county in South Dakota. The 2010 population was 2,701 and has grown 4.07% since 2010.
Overall: 41.7 years
Female: 43.2 years
Male: 39.6 years
There are 1,968 adults, (520 of whom are seniors) in Aurora County.
Female: 1,239 (46.9%)
Male: 1,403 (53.1%)
The racial composition of Aurora County includes 86.9% White, and smaller percentages for other race, Black or African American, Native American, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 2,296 | 86.9% |
| Two or more races | 242 | 9.16% |
| Other race | 72 | 2.73% |
| Black or African American | 15 | 0.57% |
| Native American | 11 | 0.42% |
| Asian | 6 | 0.23% |
Aurora County 's average per capita income is $47,853. Household income levels show a median of $72,885. The poverty rate stands at 10.6%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $103,056 | - |
| Families | $92,853 | $115,792 |
| Households | $72,885 | $91,360 |
| Non Families | $42,750 | $47,509 |
Average Income
Median Household Income
Poverty Rate