Spink County, South Dakota
Located in South Dakota, Spink County has a population of 6,219 residents and a median age of 45.5 years, making it the #2,795 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 10.1%. The median home value is $123,300, and the median household income is $70,139, which is 7% below the national median.
Demographics
Spink County has a population of 6,219, making it the #2,795 most populous county in the US. The median age is 45.5 years, which is 17.0% 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 Spink County is $70,139, ranking #1,189 out of 3,222 counties — 6.7% below the national median. The poverty rate is 10.1% and unemployment stands at 1.3%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Spink County is $123,300 (-56.3% vs national). Renters pay a median of $734/mo and the homeownership rate is 72.7%.
Median Home Value Trend
Rankings →Household Type
Education
In Spink County, 28.2% of adults age 25+ hold a bachelor's degree or higher, which is 16.3% below the national average, ranking #906 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Spink County is 77.2 years. 13.8% of adults report poor or fair health and 11.0% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
16.8% of adults in Spink County smoke , 36.8% are obese , and 22.9% report excessive drinking.
Adult Smoking Trend
Safety
. Motor vehicle deaths occur at a rate of 21.9 per 100,000.
Families & Children
12.6% of children in Spink County live in poverty . The teen birth rate is 9.7 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Spink County is 65.3%. The mean commute time is 18.4 min, which is 33.2% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Spink County voted Republican with a margin of 39.0%. The vote was 29.3% Dem / 68.3% Rep. Compared to 2020, the margin shifted 4.1 toward Republicans .
Vote Share Over Time
About Spink County, South Dakota
Spink County, South Dakota has a total population of 6,219, making it the 2,795th most populous county in the United States. The median age in Spink County is 45.5 years, which is 17.0% above the national median of 38.9 years.
The median household income in Spink County is $70,139, which ranks #1,189 of 3,222 counties nationwide. This is 6.7% below the national median of $75,149. The poverty rate is 10.1%, lower than the national rate of 12.6%. The unemployment rate stands at 1.3%.
The median home value in Spink County is $123,300, 56.3% below the national median. Renters in Spink County pay a median gross rent of $734 per month. The homeownership rate is 72.7%, compared to the national rate of 64.4%.
In Spink County, 28.2% of residents aged 25 and older hold a bachelor's degree or higher, 16.3% below the national average of 33.7%. Health insurance coverage stands at 90.6% of the population. The average commute time for workers is 18.4 min.
Spink County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 92.6% of the population, followed by Hispanic or Latino (2.8%) and Two or More Races (2.6%).
All data for Spink 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.