Sully   County SD United States

County FIPS 46119
Largest City Onida
State South Dakota
Latitude 44.7156
Longitude -100.1322
Population 1,526
Density 1.53 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: $72,578
Median individual: $46,037

Race

Mode: 86.5% White

Gender

 55.2% male 

Rent

  $842 / month  

Median house value: $214,467.0

Age

Median: 46.9 years old

Education

With at least college degree: 24.0%
With STEM degree: 32.8%

Marital Status

 57.3% married 

Never married: 27.0%

Labor Force Participation

 69.3% working 

Unemployed: 0.0%

Average Family Size

 3.07 people 

Commute Time

 19.3 minutes 

Health Care

 6.6% uninsured 

Poverty

 6.3%

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

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