McDonough   County IL United States

County FIPS 17109
Largest City Macomb
State Illinois
Latitude 40.4562
Longitude -90.6779
Population 26,920
Density 45.7 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: $52,795
Median individual: $29,722

Race

Mode: 86.4% White

Gender

 50.9% female 

Rent

  $761 / month  

Median house value: $106,805.0

Age

Median: 34.9 years old

Education

With at least college degree: 31.4%
With STEM degree: 40.1%

Marital Status

 40.8% married 

Never married: 40.9%

Labor Force Participation

 62.3% working 

Unemployed: 7.9%

Average Family Size

 2.90 people 

Commute Time

 18.6 minutes 

Health Care

 7.4% uninsured 

Poverty

 17.2%

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

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