Westmoreland County
Westmoreland County has roughly average household income, with a median household income of $74,109. Population has declined 5% since 2000. Median home value has more than doubled since 2000, reaching $203,500. With a median age of 47.2, the population is older than the US median of 38.9. It sits in the top 10% of US counties for household income.
Population & growth
PEP 2025 EST:349,324 residents (Census Bureau Vintage 2025, released March 2026)
Income & economy
Housing
Race & ethnicity
Detailed origins & ancestry
+ 7 more hispanic origin groups with data
+ 1 more asian origin group with data
+ 43 more ancestry groups with data
Education
Commute & transportation
Work & employment
People & community
Places similar to Westmoreland County
Compare Westmoreland County to nearby counties
How many people live in Westmoreland County, Pennsylvania?
Westmoreland County, Pennsylvania has about 352,500 residents according to the 2024 American Community Survey.
What is the median household income in Westmoreland County, Pennsylvania?
The typical household in Westmoreland County, Pennsylvania earns about $74,109 a year. Half of households make more than that, and half make less.
Is Westmoreland County, Pennsylvania expensive?
In Westmoreland County, Pennsylvania, the median home is worth about $203,500, and the typical rent is about $879 a month.
How educated are people in Westmoreland County, Pennsylvania?
About 32.8% of adults age 25 and over in Westmoreland County, Pennsylvania hold a bachelor's degree or higher.
What is the poverty rate in Westmoreland County, Pennsylvania?
About 10.3% of people in Westmoreland County, Pennsylvania live below the federal poverty line.
Has Westmoreland County, Pennsylvania grown since 1990?
Yes, Westmoreland County, Pennsylvania has shrunk since 1990. The population has lost about 17,821 residents, a change of about -5 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024