Delaware   County PA United States

County FIPS 42045
Largest City Upper Darby
State Pennsylvania
Latitude 39.9167
Longitude -75.3991
Population 579,222
Density 3152.07 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: $89,546
Median individual: $45,252

Race

Mode: 63.2% White

Gender

 51.6% female 

Rent

  $1372 / month  

Median house value: $332,559.0

Age

Median: 39.1 years old

Education

With at least college degree: 41.9%
With STEM degree: 45.5%

Marital Status

 45.0% married 

Never married: 38.7%

Labor Force Participation

 65.6% working 

Unemployed: 6.9%

Average Family Size

 3.24 people 

Commute Time

 28.1 minutes 

Health Care

 4.6% uninsured 

Poverty

 10.2%

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

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