Middlesex   County NJ United States

County FIPS 34023
Largest City Edison
State New Jersey
Latitude 40.4392
Longitude -74.4117
Population 871,290
Density 2818.16 people per square mile
Time Zone America/New York
  • 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: $111,549
Median individual: $49,735

Race

Mode: 40.9% White

Gender

 50.3% female 

Rent

  $1871 / month  

Median house value: $461,782.0

Age

Median: 39.5 years old

Education

With at least college degree: 45.6%
With STEM degree: 56.4%

Marital Status

 51.8% married 

Never married: 33.9%

Labor Force Participation

 67.2% working 

Unemployed: 6.7%

Average Family Size

 3.25 people 

Commute Time

 31.2 minutes 

Health Care

 7.2% uninsured 

Poverty

 8.6%

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

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