Westmoreland County, Pennsylvania
Located in Pennsylvania, Westmoreland County has a population of 352,500 residents and a median age of 47.2 years, making it the #211 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 10.3%. The median home value is $203,500, and the median household income is $74,109, which is 1% below the national median.
Demographics
Westmoreland County has a population of 352,500, making it the #211 most populous county in the US. The median age is 47.2 years, which is 21.3% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Westmoreland County is $74,109, ranking #903 out of 3,222 counties — 1.4% below the national median. The poverty rate is 10.3% and unemployment stands at 4.8%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Westmoreland County is $203,500 (-27.8% vs national). Renters pay a median of $879/mo and the homeownership rate is 78.4%.
Median Home Value Trend
Rankings →Household Type
Education
In Westmoreland County, 32.8% of adults age 25+ hold a bachelor's degree or higher, which is 2.7% below the national average, ranking #584 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Westmoreland County is 76.6 years. 14.3% of adults report poor or fair health and 4.7% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
14.7% of adults in Westmoreland County smoke , 31.4% are obese , and 22.1% report excessive drinking. The drug overdose death rate is 41.8 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Westmoreland County is 2.4 per 100,000 and the suicide rate is 16.4 per 100,000. Motor vehicle deaths occur at a rate of 9.8 per 100,000.
Homicide Rate Trend
Families & Children
13.8% of children in Westmoreland County live in poverty and the infant mortality rate is 5.3 per 1,000 live births. The teen birth rate is 9.1 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Westmoreland County is 72.0%. The mean commute time is 29.2 min, which is 5.9% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Westmoreland County voted Republican with a margin of 28.4%. The vote was 35.4% Dem / 63.8% Rep. Compared to 2020, the margin shifted 0.1 toward Republicans .
Vote Share Over Time
About Westmoreland County, Pennsylvania
Westmoreland County, Pennsylvania has a total population of 352,500, making it the 211th most populous county in the United States. The median age in Westmoreland County is 47.2 years, which is 21.3% above the national median of 38.9 years.
The median household income in Westmoreland County is $74,109, which ranks #903 of 3,222 counties nationwide. This is 1.4% below the national median of $75,149. The poverty rate is 10.3%, lower than the national rate of 12.6%. The unemployment rate stands at 4.8%.
The median home value in Westmoreland County is $203,500, 27.8% below the national median. Renters in Westmoreland County pay a median gross rent of $879 per month. The homeownership rate is 78.4%, compared to the national rate of 64.4%.
In Westmoreland County, 32.8% of residents aged 25 and older hold a bachelor's degree or higher, 2.7% below the national average of 33.7%. Health insurance coverage stands at 97.0% of the population. The average commute time for workers is 29.2 min.
Westmoreland County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 91.4% of the population, followed by Two or More Races (3.3%) and Black (non-Hispanic) (2.5%).
All data for Westmoreland County, Pennsylvania comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.