Westmoreland   County PA United States

County FIPS 42129
Largest City Hempfield
State Pennsylvania
Latitude 40.3109
Longitude -79.4668
Population 352,500
Density 343.08 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: $74,109
Median individual: $40,452

Race

Mode: 91.8% White

Gender

 50.6% female 

Rent

  $879 / month  

Median house value: $202,482.0

Age

Median: 47.2 years old

Education

With at least college degree: 32.8%
With STEM degree: 44.4%

Marital Status

 52.8% married 

Never married: 27.6%

Labor Force Participation

 60.3% working 

Unemployed: 4.8%

Average Family Size

 2.80 people 

Commute Time

 26.7 minutes 

Health Care

 3.0% uninsured 

Poverty

 10.3%

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

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