Union   County IL United States

County FIPS 17181
Largest City Anna
State Illinois
Latitude 37.4713
Longitude -89.2551
Population 16,997
Density 41.11 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: $55,728
Median individual: $31,371

Race

Mode: 89.5% White

Gender

 50.9% male 

Rent

  $648 / month  

Median house value: $128,233.0

Age

Median: 44.3 years old

Education

With at least college degree: 21.0%
With STEM degree: 40.4%

Marital Status

 49.1% married 

Never married: 26.8%

Labor Force Participation

 50.9% working 

Unemployed: 3.9%

Average Family Size

 3.05 people 

Commute Time

 24.4 minutes 

Health Care

 6.4% uninsured 

Poverty

 20.2%

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

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