Westmoreland County, PA demographics:
population, income, and more

Total population
352,500
-0.2% year-over-year change
Median household income
$74,109/yr
2.3% year-over-year change
Housing units
168,812
0.2% year-over-year change

Westmoreland County population

How many people live in Westmoreland County

Westmoreland County is home to 352,500 residents, according to the most recent Census data. Gender-wise, 49.4% of Westmoreland County locals are male, and 50.6% are female.

Total population
352,500
-0.2% year-over-year change
Gender ratio
Male
49.4%
174,093
Female
50.6%
178,407
Value Percent YoY change
Male 174,093 49.4% -0.2%
Female 178,407 50.6% -0.2%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Westmoreland County is 47, with the population distributed as follows: about 14.7% are children under 15, then 10.7% are in the 15 to 24 age group. Adults between 25 and 44 make up 22.3% of the population, while another 28.1% fall into the 45 to 64 bracket. Finally, around 24.3% are 65 or older.

Median age
47.2
Age breakdown
Under 15
14.7%
15 to 24
10.7%
25 to 44
22.3%
45 to 64
28.1%
Over 65
24.3%
Value Percent YoY change
Under 15 51,735 14.7% -1.1%
15 to 24 37,582 10.7% -0.4%
25 to 44 78,644 22.3% 0.3%
45 to 64 98,897 28.1% -2.1%
Over 65 85,642 24.3% 2.1%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Westmoreland County, 97.6% of the population are US-born citizens, while 1.8% have gained naturalized citizenship. At the same time, 0.6% of residents are non-citizens. As for race, 91.8% of locals are Caucasian, 2.6% are African American and 1% have Asian roots. There’s also a share of 4% that includes residents with two or more races.

Citizenship
U.S.-born citizens
97.6%
Non-U.S.-born citizens
1.8%
Non-citizens
0.6%
Value Percent YoY change
U.S.-born citizens 344,069 97.6% -0.4%
Non-U.S.-born citizens 6,194 1.8% 7.6%
Non-citizens 2,237 0.6% -0.7%
Racial breakdown
White
91.8%
Black or African American
2.6%
American Indian and Alaska Native
0.1%
Asian
1%
Native Hawaiian and other Pacific Islander
0%
Two or more races
4%
Other
0.4%
Value Percent
White 323,709 91.8%
Black or African American 9,148 2.6%
American Indian and Alaska Native 295 0.1%
Asian 3,406 1%
Native Hawaiian and other Pacific Islander 75 0%
Two or more races 14,267 4%
Other 1,600 0.4%

Households in Westmoreland County

A peek inside Westmoreland County households

Westmoreland County has 154,979 households, with an average of 2 members in each. Of these, 62.8% are families, while the remaining 37.2% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
154,979
0.4% year-over-year change
Average people per household
2
Non-family households
57,735
Family households
97,244
Value Percent YoY change
Non-family households 57,735 37.2% 0.1%
Family households 97,244 62.8% 0.5%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Westmoreland County

The housing landscape of Westmoreland County

Westmoreland County's housing consists of 168,812 units, with 76.9% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 5.3% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 5.1% of the housing landscape.

Housing units
168,812
0.2% year-over-year change
Housing types
Value Percent
1 unit, detached 129,771 76.9%
1 unit, attached 8,972 5.3%
2 units 5,309 3.1%
3 or 4 units 4,693 2.8%
5 to 9 units 3,119 1.8%
10 to 19 units 2,514 1.5%
20 to 49 units 2,759 1.6%
50 or more units 3,005 1.8%
Mobile home 8,642 5.1%
Boat, RV, van, etc. 28 0%
Homes built since 2020
1,252
54.0% year-over-year change

The age of buildings in Westmoreland County

In Westmoreland County, the median construction year is 1964. About 19.8% of homes were built before the 1940s, with another 8.2% going up by 1949. Most development happened in the second half of the 20th century. Then, 7.4% of homes were added from 2000 to 2009, 3.7% between 2010 and 2019, and 0.7% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 33,492 19.8% 0.8%
Built between 1940 and 1949 13,931 8.2% -1.1%
Built between 1950 and 1959 27,603 16.4% -3.4%
Built between 1960 and 1969 21,124 12.5% 0.2%
Built between 1970 and 1979 23,958 14.2% -0.9%
Built between 1980 and 1989 14,241 8.4% -0.4%
Built between 1990 and 1999 14,452 8.6% -0.7%
Built between 2000 and 2009 12,489 7.4% 6.8%
Built between 2010 and 2019 6,270 3.7% 6.3%
Built in 2020 or later 1,252 0.7% 54.0%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Westmoreland County occupancy rates

Out of the 154,979 occupied housing units in Westmoreland County, 78.4% are owner-occupied, while 21.6% are lived in by tenants. Meanwhile, 8.2% of all homes on the local market sit vacant.

Occupied housing units
154,979
0.4% year-over-year change
Occupancy breakdown
Renter occupied
33,451
Owner occupied
121,528
Value Percent YoY
change
Renter occupied 33,451 21.6% -0.4%
Owner occupied 121,528 78.4% 0.6%
Unoccupied housing units
8.2%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Westmoreland County housing costs

Housing costs in Westmoreland County come to a median of $942 per month, while tenants specifically pay a median gross rent of $879.

Median housing costs per month
$942/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Westmoreland County
$879/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Westmoreland County

Westmoreland County education at a glance

About 38.9% of the population in Westmoreland County went to high school, while 17.4% pursued college studies. Another 11.7% earned an associate degree and 20.1% hold a bachelor’s. Meanwhile, 10.8% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 3,087 1.1% -8.4%
High school diploma 112,220 38.9% -1.5%
College diploma 50,104 17.4% -2.5%
Associate degree 33,836 11.7% 1.6%
Bachelor's degree 57,848 20.1% 4.3%
Graduate degree 31,255 10.8% 0.2%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Westmoreland County

How much people earn in Westmoreland County

The average annual household income in Westmoreland County was $97,695 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +2.8% change from the previous year. At the same time, the median income stood at $74,109, reflecting a +2.3% shift over the same period.

Average household income in Westmoreland County
$97,695/year
2.8% year-over-year change
Median household income in Westmoreland County
$74,109/year
2.3% year-over-year change

Westmoreland County income by age

In Westmoreland County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $93,193. Those with someone between 45 and 64 in charge, often well established professionally, earn $90,421 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $40,173, while those led by someone over 65, many of whom may be retired, have about $53,414 in earnings. Overall, 89.8% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $40,173 4.0%
25 - 44 $93,193 6.1%
45 - 64 $90,421 1.6%
Over 65 $53,414 2.7%
Above poverty level
307,776
Below poverty level
34,927
Value Percent YoY
change
Above poverty level 307,776 89.8% -0.5%
Below poverty level 34,927 10.2% 2.5%

Employment in Westmoreland County

Workforce and job types in Westmoreland County

The job market in Westmoreland County is powered by 170,131 working residents, spread across a range of industries and roles. 76.5% of the working population are employed in professional or administrative positions, while 23.5% are in hands-on or service-based jobs. Also, 8.1% run their own businesses, 69.1% are employed by private companies, and 10% work in the public sector.

Workforce demographics

Working population
170,131
-0.8% year-over-year change
White collar
130,167
Blue collar
39,964
Value Percent YoY change
White collar 130,167 76.5% 0.2%
Blue collar 39,964 23.5% -4.2%
Employer type
Self employees
8.1%
Private companies
69.1%
Governmental workers
10%
Not for profit companies
12.8%
Value Percent YoY change
Self employees 13,757 8.1% -2.7%
Private companies 117,536 69.1% -1.4%
Governmental workers 17,078 10% 0.2%
Not for profit companies 21,760 12.8% 2.9%
Unemployment rate
4.8%
-2.0% year-over-year change

Available workforce

The unemployment rate in Westmoreland County stands at 4.8%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Westmoreland County

How people get around in Westmoreland County

Commuting methods vary: 83.7% of residents travel by personal vehicle and 1.6% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 140,265 83.7% -2.1%
Taxicab 10 0% -73.7%
Bus or trolleybus 831 0.5% -29.6%
Subway or elevated 41 0% N/A
Ferryboat 23 0% -67.1%
Motorcycle 141 0.1% -7.8%
Bicycle 105 0.1% 66.7%
Walk 2,763 1.6% -5.7%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Westmoreland County by zipcode?

Zipcode Population Number of households Median income Average income
15083 913 465 $64,750 $103,816
15085 8,062 3,397 $82,456 $106,450
15087 85 60 $0 $58,438
15089 6,789 3,016 $60,533 $75,403
15479 2,010 827 $63,852 $195,719
15012 15,412 7,061 $60,172 $83,897
15062 6,780 3,129 $52,889 $67,415
15068 36,203 16,821 $63,426 $85,982
15072 42 42 $0 $27,848
15448 150 77 $47,011 $54,291

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FAQs about Westmoreland County demographics 

What is the total population of Westmoreland County?

Westmoreland County has a total population of 352,500 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -0.2% compared to a year ago.

What is the gender ratio in Westmoreland County?

The gender ratio in Westmoreland County is as follows:
  • 49.4% males (174,093 residents)
  • 50.6% females (178,407 residents)

What is the median age in Westmoreland County?

The median age in Westmoreland County is 47.2.

What is the age distribution of the population in Westmoreland County?

The age distribution in Westmoreland County is as follows:
  • Under 15: 14.7% (51,735 residents)
  • Ages 15-24: 10.7% (37,582 residents)
  • Ages 25-44: 22.3% (78,644 residents)
  • Ages 45-64: 28.1% (98,897 residents)
  • Over 65: 24.3% (85,642 residents)

What is the racial and ethnic makeup of Westmoreland County?

The racial and ethnic makeup of Westmoreland County is as follows:
  • White: 91.8% (323,709 residents)
  • Black or African American: 2.6% (9,148 residents)
  • American Indian and Alaska Native: 0.1% (295 residents)
  • Asian: 1% (3,406 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (75 residents)
  • Two or More Races: 4% (14,267 residents)
  • Other: 0.4% (1,600 residents)

What percentage of the population in Westmoreland County are U.S.-born citizens?

U.S.-born citizens represent 97.6% of the population in Westmoreland County.

How many housing units are there in Westmoreland County?

There are 168,812 housing units in Westmoreland County, reflecting a +0.2% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Westmoreland County and what is the average household size?

Westmoreland County has a total of 154,979 households, with an average of 2 people in each.

What is the median household income in Westmoreland County?

Westmoreland County has a median household income of $74,109, representing a +2.3% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Westmoreland County?

The employment rate is 95.2% in Westmoreland County, with a workforce of 170,131 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 76.5% (130,167 residents)
  • Blue-collar workers: 23.5% (39,964 residents)

Places of employment:
  • Self-employed: 8.1% (13,757 residents)
  • Private companies: 69.1% (117,536 residents)
  • Governmental workers: 10% (17,078 residents)
  • Not-for-profit companies: 12.8% (21,760 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025