Union   County SD United States

County FIPS 46127
Largest City Dakota Dunes
State South Dakota
Latitude 42.8325
Longitude -96.6560
Population 17,081
Density 37.07 people per square mile
Time Zone America/Chicago
  • All demographic data comes from the 2024 American Community Survey (5-year study).
  • Learn more about each field.
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Household Income

Median household: $89,636
Median individual: $49,786

Race

Mode: 90.0% White

Gender

 51.6% male 

Rent

  $1069 / month  

Median house value: $303,531.0

Age

Median: 41.5 years old

Education

With at least college degree: 37.0%
With STEM degree: 49.8%

Marital Status

 63.6% married 

Never married: 23.3%

Labor Force Participation

 68.4% working 

Unemployed: 3.0%

Average Family Size

 2.77 people 

Commute Time

 17.7 minutes 

Health Care

 5.1% uninsured 

Poverty

 6.2%

All data comes from the SimpleMaps US Counties Database, 2026.

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