Aurora County, South Dakota
Located in South Dakota, Aurora County has a population of 2,642 residents and a median age of 41.7 years, making it the #3,061 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 10.6%. The median home value is $151,900, and the median household income is $72,885, which is 3% below the national median.
Demographics
Aurora County has a population of 2,642, making it the #3,061 most populous county in the US. The median age is 41.7 years, which is 7.2% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Aurora County is $72,885, ranking #980 out of 3,222 counties — 3.0% below the national median. The poverty rate is 10.6% and unemployment stands at 1.2%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Aurora County is $151,900 (-46.1% vs national). Renters pay a median of $747/mo and the homeownership rate is 72.7%.
Median Home Value Trend
Rankings →Household Type
Education
In Aurora County, 21.4% of adults age 25+ hold a bachelor's degree or higher, which is 36.5% below the national average, ranking #1,756 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Aurora County is 75.9 years. 13.4% of adults report poor or fair health and 11.0% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
16.1% of adults in Aurora County smoke , 33.4% are obese , and 23.8% report excessive drinking.
Adult Smoking Trend
Safety
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Families & Children
15.3% of children in Aurora County live in poverty . The teen birth rate is 18.6 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Aurora County is 73.6%. The mean commute time is 22.2 min, which is 19.7% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Aurora County voted Republican with a margin of 54.1%. The vote was 21.7% Dem / 75.8% Rep. Compared to 2020, the margin shifted 1.8 toward Republicans .
Vote Share Over Time
About Aurora County, South Dakota
Aurora County, South Dakota has a total population of 2,642, making it the 3,061st most populous county in the United States. The median age in Aurora County is 41.7 years, which is 7.2% above the national median of 38.9 years.
The median household income in Aurora County is $72,885, which ranks #980 of 3,222 counties nationwide. This is 3.0% below the national median of $75,149. The poverty rate is 10.6%, lower than the national rate of 12.6%. The unemployment rate stands at 1.2%.
The median home value in Aurora County is $151,900, 46.1% below the national median. Renters in Aurora County pay a median gross rent of $747 per month. The homeownership rate is 72.7%, compared to the national rate of 64.4%.
In Aurora County, 21.4% of residents aged 25 and older hold a bachelor's degree or higher, 36.5% below the national average of 33.7%. Health insurance coverage stands at 94.8% of the population. The average commute time for workers is 22.2 min.
Aurora County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 86.3% of the population, followed by Hispanic or Latino (7.0%) and Two or More Races (5.4%).
All data for Aurora County, South Dakota comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.