Sanborn County, South Dakota
Located in South Dakota, Sanborn County has a population of 2,384 residents and a median age of 40.1 years, making it the #3,084 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 8.5%. The median home value is $135,600, and the median household income is $78,750, which is 5% above the national median.
Demographics
Sanborn County has a population of 2,384, making it the #3,084 most populous county in the US. The median age is 40.1 years, which is 3.1% 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 Sanborn County is $78,750, ranking #636 out of 3,222 counties — 4.8% above the national median. The poverty rate is 8.5% and unemployment stands at 0.6%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Sanborn County is $135,600 (-51.9% vs national). Renters pay a median of $725/mo and the homeownership rate is 78.6%.
Median Home Value Trend
Rankings →Household Type
Education
In Sanborn County, 21.3% of adults age 25+ hold a bachelor's degree or higher, which is 36.8% below the national average, ranking #1,775 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Sanborn County is 77.3 years. 13.6% of adults report poor or fair health and 10.8% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
15.0% of adults in Sanborn County smoke , 35.0% are obese , and 23.0% report excessive drinking.
Adult Smoking Trend
Safety
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Families & Children
13.3% of children in Sanborn County live in poverty .
Child Poverty Trend
Civic & Transportation
Voter turnout in Sanborn County is 66.4%. The mean commute time is 22.9 min, which is 17.2% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Sanborn County voted Republican with a margin of 55.3%. The vote was 21.4% Dem / 76.7% Rep. Compared to 2020, the margin shifted 0.6 toward Republicans .
Vote Share Over Time
About Sanborn County, South Dakota
Sanborn County, South Dakota has a total population of 2,384, making it the 3,084th most populous county in the United States. The median age in Sanborn County is 40.1 years, which is 3.1% above the national median of 38.9 years.
The median household income in Sanborn County is $78,750, which ranks #636 of 3,222 counties nationwide. This is 4.8% above the national median of $75,149. The poverty rate is 8.5%, lower than the national rate of 12.6%. The unemployment rate stands at 0.6%.
The median home value in Sanborn County is $135,600, 51.9% below the national median. Renters in Sanborn County pay a median gross rent of $725 per month. The homeownership rate is 78.6%, compared to the national rate of 64.4%.
In Sanborn County, 21.3% of residents aged 25 and older hold a bachelor's degree or higher, 36.8% below the national average of 33.7%. Health insurance coverage stands at 94.7% of the population. The average commute time for workers is 22.9 min.
Sanborn County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 90.2% of the population, followed by Hispanic or Latino (5.2%) and American Indian (non-Hispanic) (2.3%).
All data for Sanborn 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.