46373   Zip Code Saint John Lake IN United States

City Saint John
County Lake
State Indiana
Latitude 41.44578
Longitude -87.46954
Population 18,843
Density 1732.12 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: $127,146
Median individual: $61,879

Race

Mode: 82.9% White

Gender

 51.0% male 

Rent

  $981 / month  

Median house value: $412,620.0

Age

Median: 44.4 years old

Education

With at least college degree: 42.5%
With STEM degree: 51.3%

Marital Status

 64.1% married 

Never married: 24.4%

Labor Force Participation

 60.1% working 

Unemployed: 2.7%

Average Family Size

 3.16 people 

Commute Time

 30.9 minutes 

Health Care

 2.3% uninsured 

Poverty

 2.8%

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

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