Sullivan   County IN United States

County FIPS 18153
Largest City Sullivan
State Indiana
Latitude 39.0889
Longitude -87.4147
Population 20,780
Density 46.48 people per square mile
Time Zone America/Indiana/Indianapolis
  • 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: $56,204
Median individual: $31,160

Race

Mode: 90.7% White

Gender

 55.3% male 

Rent

  $829 / month  

Median house value: $124,883.0

Age

Median: 41.7 years old

Education

With at least college degree: 14.5%
With STEM degree: 44.0%

Marital Status

 48.5% married 

Never married: 28.3%

Labor Force Participation

 54.8% working 

Unemployed: 4.4%

Average Family Size

 2.96 people 

Commute Time

 25.2 minutes 

Health Care

 6.8% uninsured 

Poverty

 13.9%

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

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