Randolph   County IL United States

County FIPS 17157
Largest City Chester
State Illinois
Latitude 38.0521
Longitude -89.8252
Population 30,058
Density 52.25 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: $68,131
Median individual: $38,681

Race

Mode: 85.8% White

Gender

 53.9% male 

Rent

  $780 / month  

Median house value: $136,054.0

Age

Median: 43.7 years old

Education

With at least college degree: 15.2%
With STEM degree: 39.0%

Marital Status

 46.2% married 

Never married: 30.7%

Labor Force Participation

 53.2% working 

Unemployed: 5.0%

Average Family Size

 2.76 people 

Commute Time

 23.1 minutes 

Health Care

 5.3% uninsured 

Poverty

 14.6%

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

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