Mahaska   County IA United States

County FIPS 19123
Largest City Oskaloosa
State Iowa
Latitude 41.3352
Longitude -92.6409
Population 22,021
Density 38.58 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: $70,940
Median individual: $36,977

Race

Mode: 92.2% White

Gender

 50.8% male 

Rent

  $793 / month  

Median house value: $154,763.0

Age

Median: 39.0 years old

Education

With at least college degree: 24.1%
With STEM degree: 37.3%

Marital Status

 52.2% married 

Never married: 30.0%

Labor Force Participation

 65.0% working 

Unemployed: 3.5%

Average Family Size

 3.06 people 

Commute Time

 18.0 minutes 

Health Care

 4.7% uninsured 

Poverty

 12.6%

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

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