Westmoreland County, Pennsylvania Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Westmoreland County, PA Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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B
Health Around averageHealthier than 71% of counties in Pennsylvania
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B
Income Around averageWealthier than 83% of counties in Pennsylvania
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C
Education Below averageBetter educated than 85% of counties in Pennsylvania
Source: Map AI Methodology
Population: density and quick facts
| Metric | Westmoreland County | Pennsylvania Avg | U.S. Average |
|---|---|---|---|
| Population | 352,391 | 13,004,688 | 337,468,954 |
| Population density (per sq mi) | 340.3 | 282.1 | 86.4 |
| Population growth (%/yr) | -0.25% | 0.21% | 0.59% |
| Median age | 48.3 | 41.6 | 37.3 |
| Households | 154,928 | 5,268,760 | 130,235,071 |
Population in Westmoreland County declined by 3.1% from 2009 to 2024, reaching 352,391 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Westmoreland County is Boomers, aged 61–79, at 23.3% of residents. That is 4.3 points above Pennsylvania as a whole.
- Gen Z 13–28 60,507 17.2% -3.0 pts
- Millennials 29–44 65,157 18.5% -2.5 pts
- Gen X 45–60 79,824 22.7% +2.1 pts
- Boomers 61–79 82,189 23.3% +4.3 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Pennsylvania, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 51.0% of the people living in Westmoreland County and men 49.0%.
- Women 51.0% Pennsylvania 50.8%
- Men 49.0% Pennsylvania 49.2%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Westmoreland County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Westmoreland County has a the economy index of B, which means it is quite prosperous.
| Metric | Westmoreland County | Pennsylvania Avg | U.S. Average |
|---|---|---|---|
| Median household income | $74,121 | $78,249 | $80,455 |
| Income growth (%/yr) | 3.88% | 4.43% | 4.80% |
| Unemployment rate | 4.8% | 5.2% | 5.2% |
The median household income in Westmoreland County is about 5% lower than in Pennsylvania.
Housing
| Metric | Westmoreland County | Pennsylvania Avg | U.S. Average |
|---|---|---|---|
| Median home price | $153,899 | $152,469 | $248,835 |
| Median rent | $878 | $1,208 | $1,407 |
| Homeownership rate | 78.4% | 69.3% | 65.2% |
The median home price in Westmoreland County is about 14.6 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $878 per month for that long.
Commute Time & Mobility
Commuters in Westmoreland County spend about 45 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 189 hours, about 7.9 full days, spent commuting.
| Metric | Westmoreland County | Pennsylvania Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 22.7 | 22.4 | 22.4 |
| Round-trip commute (min) | 45.4 | 44.7 | 44.8 |
| Yearly time spent (hours) | 189 | 186 | 187 |
| Estimated yearly cost | $5,863 | $5,779 | $5,790 |
| Work from home | 13.3% | 15.6% | 15.0% |
| Highway traffic (vehicles/day) | 6,859 | 6,862 | 8,813 |
| Local road traffic (vehicles/day) | 1,297 | 1,152 | 1,355 |
Fastest commutes among counties in
Pennsylvania:
Cameron County (11.4 min), Elk County (15.4 min), McKean County (15.9 min).
Slowest:
Pike County (32.5 min), Perry County (32.0 min), Carbon County (30.5 min).
The average commute time in Westmoreland County is 23 minutes, longer than the 22 minutes in Pennsylvania.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Westmoreland County has a education index of C, which means it is somewhat educated.
| Metric | Westmoreland County | Pennsylvania Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 29.5% | 31.4% | 31.6% |
| Average household size | 2.23 | 2.39 | 2.53 |
Highest education index among counties in
Pennsylvania:
Chester County (0.4), Montgomery County (0.4), Allegheny County (0.4).
Lowest:
Forest County (0.1), Mifflin County (0.2), Juniata County (0.2).
Health
Westmoreland County has a health index of B, which means it is quite healthy.
| Metric | Westmoreland County | Pennsylvania Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 78.0 | 78.4 | 78.3 |
| Self-rated poor health | 14.4% | 15.7% | 16.3% |
| Smokers | 18.4% | 20.1% | 19.0% |
Highest health index among counties in
Pennsylvania:
Montgomery County (0.8), Centre County (0.8), Chester County (0.8).
Lowest:
Forest County (0.8), Mifflin County (0.8), Jefferson County (0.8).
Westmoreland County, PA Compared With Nearby Counties
Westmoreland County, PA is the 2nd largest of the 6 counties compared here, 352,391 residents against a local median of 83,041. Where Westmoreland County, PA breaks from the counties next to it is median home price, sitting 68% above the local median of $91,691 at $153,899.
Median household income tells the same story from another angle: $74,121 against a local median of $61,709, 20% above it. The one measure here that carries a verdict is median household income, and at 20% above the local median it puts Westmoreland County, PA at the better end of the local range. The counties themselves spread $82,911 on median home price, so Westmoreland County, PA sits at one end of an already wide local range rather than apart from it. Westmoreland County, PA has the highest median home price of the 6 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Westmoreland County, PA | 352,391 | $74,121 #2/6 | $153,899 #1/6 | 22.7 min #4/6 |
| Fayette County, PA | 125,964 | $58,233 | $57,458 | 21.3 min |
| Armstrong County, PA | 64,604 | $66,674 | $70,377 | 23.9 min |
| Indiana County, PA | 83,041 | $60,208 | $91,691 | 18.9 min |
| Allegheny County, PA | 1,233,873 | $78,868 | $121,719 | 22.8 min |
| Somerset County, PA | 72,817 | $61,709 | $140,368 | 20.5 min |
Frequently Asked Questions
Common questions about Westmoreland County, Pennsylvania.
How many people live in Westmoreland County, Pennsylvania?
About 352,391 people live in Westmoreland County, Pennsylvania, in 154,928 households of 2.2 people on average. The median age is 48.3, so residents are older than the U.S. median of 37.3 by about 11 years.
How densely populated is Westmoreland County, Pennsylvania?
Averaged over its land area, Westmoreland County, Pennsylvania has 340 people per square mile, a density typical of a mix of suburbs, small towns and farmland. That is about 3.9 times the U.S. average of 86.
How affordable is housing in Westmoreland County, Pennsylvania?
The median home costs 2.1 times the median household income ($153,899 against $74,121), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $878 a month takes about 14% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
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