Middlesex   County MA United States

County FIPS 25017
Largest City Cambridge
State Massachusetts
Latitude 42.4856
Longitude -71.3918
Population 1,638,365
Density 2003.73 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: $130,847
Median individual: $60,753

Race

Mode: 66.8% White

Gender

 50.6% female 

Rent

  $2201 / month  

Median house value: $727,470.0

Age

Median: 38.9 years old

Education

With at least college degree: 59.5%
With STEM degree: 56.3%

Marital Status

 49.5% married 

Never married: 37.2%

Labor Force Participation

 69.9% working 

Unemployed: 4.4%

Average Family Size

 3.07 people 

Commute Time

 29.9 minutes 

Health Care

 2.4% uninsured 

Poverty

 7.7%

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

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