Corson County, South Dakota
Located in South Dakota, Corson County has a population of 3,806 residents and a median age of 29.9 years, making it the #2,977 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 44.2%. The median home value is $69,800, and the median household income is $46,406, which is 38% below the national median.
Demographics
Corson County has a population of 3,806, making it the #2,977 most populous county in the US. The median age is 29.9 years, which is 23.1% below 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 Corson County is $46,406, ranking #2,919 out of 3,222 counties — 38.2% below the national median. The poverty rate is 44.2% and unemployment stands at 23.5%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Corson County is $69,800 (-75.2% vs national). Renters pay a median of $496/mo and the homeownership rate is 59.1%.
Median Home Value Trend
Rankings →Household Type
Education
In Corson County, 19.0% of adults age 25+ hold a bachelor's degree or higher, which is 43.7% below the national average, ranking #2,185 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Corson County is 58.7 years. 26.6% of adults report poor or fair health and 10.3% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
27.6% of adults in Corson County smoke , 46.2% are obese , and 17.7% report excessive drinking.
Adult Smoking Trend
Safety
The suicide rate is 56.7 per 100,000. Motor vehicle deaths occur at a rate of 45.9 per 100,000.
Suicide Rate Trend
Families & Children
40.4% of children in Corson County live in poverty . The teen birth rate is 60.0 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Corson County is 49.4%. The mean commute time is 23.8 min, which is 13.6% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Corson County voted Republican with a margin of 11.9%. The vote was 43.3% Dem / 55.2% Rep. Compared to 2020, the margin shifted 10.0 toward Republicans .
Vote Share Over Time
About Corson County, South Dakota
Corson County, South Dakota has a total population of 3,806, making it the 2,977th most populous county in the United States. The median age in Corson County is 29.9 years, which is 23.1% below the national median of 38.9 years.
The median household income in Corson County is $46,406, which ranks #2,919 of 3,222 counties nationwide. This is 38.2% below the national median of $75,149. The poverty rate is 44.2%, higher than the national rate of 12.6%. The unemployment rate stands at 23.5%.
The median home value in Corson County is $69,800, 75.2% below the national median. Renters in Corson County pay a median gross rent of $496 per month. The homeownership rate is 59.1%, compared to the national rate of 64.4%.
In Corson County, 19.0% of residents aged 25 and older hold a bachelor's degree or higher, 43.7% below the national average of 33.7%. Health insurance coverage stands at 83.1% of the population. The average commute time for workers is 23.8 min.
Corson County is a diverse community. The largest racial or ethnic group is American Indian (non-Hispanic) at 66.5% of the population, followed by White (non-Hispanic) (29.9%) and Two or More Races (3.0%).
All data for Corson 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.