Madison   County IL United States

County FIPS 17119
Largest City Alton
State Illinois
Latitude 38.8297
Longitude -89.9049
Population 264,238
Density 369.4 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.
Download the data

Household Income

Median household: $75,793
Median individual: $42,452

Race

Mode: 83.0% White

Gender

 51.1% female 

Rent

  $1024 / month  

Median house value: $175,802.0

Age

Median: 40.2 years old

Education

With at least college degree: 31.0%
With STEM degree: 42.5%

Marital Status

 48.4% married 

Never married: 31.9%

Labor Force Participation

 62.7% working 

Unemployed: 4.6%

Average Family Size

 2.94 people 

Commute Time

 24.9 minutes 

Health Care

 4.7% uninsured 

Poverty

 11.1%

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

Home (Maps) | Database License | Privacy | Database Releases | Database Order Lookup | Resources | Contact | FAQs
SimpleMaps.com is a product of Pareto Software, LLC. © 2010-2026.