Rock Island   County IL United States

County FIPS 17161
Largest City Moline
State Illinois
Latitude 41.4673
Longitude -90.5674
Population 142,757
Density 334.02 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: $67,159
Median individual: $38,915

Race

Mode: 71.5% White

Gender

 50.5% female 

Rent

  $889 / month  

Median house value: $150,231.0

Age

Median: 40.3 years old

Education

With at least college degree: 24.7%
With STEM degree: 37.9%

Marital Status

 46.7% married 

Never married: 33.0%

Labor Force Participation

 61.2% working 

Unemployed: 5.6%

Average Family Size

 2.85 people 

Commute Time

 19.7 minutes 

Health Care

 6.1% uninsured 

Poverty

 15.5%

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

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