St. Clair   County MI United States

County FIPS 26147
Largest City Port Huron
State Michigan
Latitude 42.9341
Longitude -82.6806
Population 160,221
Density 222.12 people per square mile
Time Zone America/Detroit
  • 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: $71,270
Median individual: $37,496

Race

Mode: 91.2% White

Gender

 50.1% male 

Rent

  $1029 / month  

Median house value: $224,878.0

Age

Median: 44.5 years old

Education

With at least college degree: 20.3%
With STEM degree: 37.4%

Marital Status

 52.2% married 

Never married: 28.1%

Labor Force Participation

 60.8% working 

Unemployed: 5.7%

Average Family Size

 2.85 people 

Commute Time

 28.5 minutes 

Health Care

 4.9% uninsured 

Poverty

 11.3%

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

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