51003   Zip Code Alton Sioux IA United States

City Alton
County Sioux
State Iowa
Latitude 42.98355
Longitude -95.98642
Population 1,938
Density 35.75 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: $101,250
Median individual: $48,511

Race

Mode: 94.4% White

Gender

 50.9% male 

Rent

  $813 / month  

Median house value: $232,790.0

Age

Median: 37.1 years old

Education

With at least college degree: 29.2%
With STEM degree: 25.1%

Marital Status

 66.9% married 

Never married: 25.0%

Labor Force Participation

 79.5% working 

Unemployed: 2.0%

Average Family Size

 3.14 people 

Commute Time

 21.1 minutes 

Health Care

 1.1% uninsured 

Poverty

 2.0%

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

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