Marshall   County SD United States

County FIPS 46091
Largest City Britton
State South Dakota
Latitude 45.7586
Longitude -97.5986
Population 4,344
Density 5.18 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: $78,156
Median individual: $39,844

Race

Mode: 84.5% White

Gender

 52.9% male 

Rent

  $752 / month  

Median house value: $148,164.0

Age

Median: 42.5 years old

Education

With at least college degree: 25.5%
With STEM degree: 48.5%

Marital Status

 60.0% married 

Never married: 24.0%

Labor Force Participation

 63.8% working 

Unemployed: 0.3%

Average Family Size

 3.25 people 

Commute Time

 16.0 minutes 

Health Care

 3.9% uninsured 

Poverty

 6.1%

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

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