Jersey   County IL United States

County FIPS 17083
Largest City Jerseyville
State Illinois
Latitude 39.0855
Longitude -90.3565
Population 21,274
Density 57.59 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: $80,361
Median individual: $37,229

Race

Mode: 94.9% White

Gender

 51.2% female 

Rent

  $846 / month  

Median house value: $176,793.0

Age

Median: 43.7 years old

Education

With at least college degree: 22.6%
With STEM degree: 37.4%

Marital Status

 47.9% married 

Never married: 32.6%

Labor Force Participation

 60.6% working 

Unemployed: 3.4%

Average Family Size

 3.12 people 

Commute Time

 27.1 minutes 

Health Care

 5.0% uninsured 

Poverty

 8.8%

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

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