Monona   County IA United States

County FIPS 19133
Largest City Onawa
State Iowa
Latitude 42.0516
Longitude -95.9599
Population 8,557
Density 12.33 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: $68,377
Median individual: $36,761

Race

Mode: 93.4% White

Gender

 51.0% female 

Rent

  $855 / month  

Median house value: $135,726.0

Age

Median: 43.7 years old

Education

With at least college degree: 19.6%
With STEM degree: 39.4%

Marital Status

 54.6% married 

Never married: 24.3%

Labor Force Participation

 61.1% working 

Unemployed: 1.6%

Average Family Size

 2.69 people 

Commute Time

 22.6 minutes 

Health Care

 3.9% uninsured 

Poverty

 10.6%

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

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