51535   Zip Code Griswold Cass IA United States

City Griswold
County Cass
State Iowa
Latitude 41.2264
Longitude -95.13241
Population 1,697
Density 12.44 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: $76,371
Median individual: $35,640

Race

Mode: 95.5% White

Gender

 52.8% male 

Rent

  $950 / month  

Median house value: $151,573.0

Age

Median: 50.4 years old

Education

With at least college degree: 22.6%
With STEM degree: 46.7%

Marital Status

 55.5% married 

Never married: 22.7%

Labor Force Participation

 60.4% working 

Unemployed: 0.9%

Average Family Size

 2.80 people 

Commute Time

 23.3 minutes 

Health Care

 1.9% uninsured 

Poverty

 7.9%

All data comes from the SimpleMaps US Zips Comprehensive Database, February 2026.

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