62002   Zip Code Alton Madison IL United States

City Alton
County Madison
State Illinois
Latitude 38.93988
Longitude -90.12829
Population 29,543
Density 715.8 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: $61,414
Median individual: $36,438

Race

Mode: 73.2% White

Gender

 51.8% female 

Rent

  $1006 / month  

Median house value: $118,392.0

Age

Median: 40.4 years old

Education

With at least college degree: 24.0%
With STEM degree: 38.6%

Marital Status

 38.0% married 

Never married: 38.4%

Labor Force Participation

 61.3% working 

Unemployed: 4.9%

Average Family Size

 3.01 people 

Commute Time

 23.1 minutes 

Health Care

 6.0% uninsured 

Poverty

 17.8%

All data comes from the SimpleMaps US Zips Comprehensive Database, February 2026.

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