Putnam   County IL United States

County FIPS 17155
Largest City Granville
State Illinois
Latitude 41.2045
Longitude -89.2858
Population 5,601
Density 35.0 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: $75,590
Median individual: $40,241

Race

Mode: 91.3% White

Gender

 51.9% male 

Rent

  $851 / month  

Median house value: $172,968.0

Age

Median: 47.4 years old

Education

With at least college degree: 22.8%
With STEM degree: 46.9%

Marital Status

 57.4% married 

Never married: 23.8%

Labor Force Participation

 60.3% working 

Unemployed: 4.2%

Average Family Size

 2.75 people 

Commute Time

 28.1 minutes 

Health Care

 3.0% uninsured 

Poverty

 8.1%

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

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