US ZIP Code
15642

Irwin, PA

Westmoreland County  ·  Pennsylvania

● Active
👥 46,727 Population ↑ 6% since 2019
💰 $92,975 Median HH Income
▲ 22% above avg ↑ 24% since 2019
🎂 44.9 Median Age
🏠 $236,000 Median Home Value
▼ 15% below avg ↑ 34% since 2019
🎓 54.3% College Grads
▲ 40% above avg
📊 4.2% Unemployment
▼ 15% below avg ↑ 12% since 2019
ZIP Code Details
ZIP Code15642
CityIrwin
StatePennsylvania (PA)
CountyWestmoreland County
Area Code724/878
Elevation1,107 ft
Latitude40.319284
Longitude-79.723697
TimezoneNew York (DST)
FIPS42129
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 49.6% (23,172) Female 50.4% (23,555) ♀

Race & Ethnicity

White: 93.7%Hispanic: 1.7%Black: 0.7%Asian: 0.9%Other: 2.7%Race
White93.7%
Hispanic1.7%
Black0.7%
Asian0.9%
Other2.7%

Age Breakdown

Under 5
5%
5–17
17%
18–24
5%
25–44
23%
45–64
29%
65+
9%

Key Indicators

Median Age44.9 yrs
Avg Household Size2.39
Below Poverty6.1% ▼ 39% below avg
College Grads54.3% ▲ 40% above avg
Unemployment4.2% ▼ 15% below avg
No HS Diploma99 (0.3%)
HS Graduate9,548 (28.6%)
Some College2,367 (7.1%)
Associates3,234 (9.7%)
Bachelors4,435 (13.3%)
Graduate Degree13,653 (41%)

Education

No HS: 0.3%HS Grad: 28.6%Some College: 7.1%Associates: 9.7%Bachelors: 13.3%Graduate: 41%Edu
No HS0.3%
HS Grad28.6%
Some College7.1%
Associates9.7%
Bachelors13.3%
Graduate41.0%
Housing & Income

Housing Tenure

Owner: 84.8%Renter: 15.2%Tenure
Owner84.8%
Renter15.2%

Home Value Distribution

Under $50k
3%
$50k–100k
5%
$100k–150k
10%
$150k–200k
17%
$200k–300k
30%
$300k–500k
25%
Over $500k
9%

Financials

Median HH Income$92,975 ▲ 22% above avg ↑ 24% since 2019
Median Home Value$236,000 ▼ 15% below avg ↑ 34% since 2019
Home/Income Ratio2.5x (nat avg ~3.5x)
Median Rent$960/mo ↑ 25% since 2019
Total Units20,299
Vacant Units873
Avg HH Size2.39

Income Distribution

Under $25k
11%
$25k–50k
13%
$50k–75k
14%
$75k–100k
16%
$100k–150k
20%
$150k–200k
14%
Over $200k
13%
Employment & Commute

How People Get to Work

Drove Alone
81%
Public Transit
1%
Walked
1%
Work From Home
17%

Commute Time

Under 15 min
20%
15–30 min
33%
30–45 min
25%
Over 45 min
22%
Housing Stock

Year Built

Before 1940
3%
1940s–1950s
19%
1960s–1970s
10%
1980s–1990s
12%
2000+
57%

Summary

Total Units20,299
Vacant873
Owner Occupied84.8%
Renter Occupied15.2%
Avg HH Size2.39
Frequently Asked Questions
ZIP code 15642 is in Irwin, PA, in Westmoreland County.
ZIP code 15642 is located in Pennsylvania (PA).
ZIP code 15642 is in Westmoreland County, PA.
ZIP 15642 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 15642 is 46,727 people (ACS 2023).
The median household income in ZIP code 15642 is $92,975 (ACS 2023).
The median home value in ZIP 15642 is $236,000 (ACS 2023).
About ZIP Code 15642

ZIP code 15642 is located in Irwin, Pennsylvania, within Westmoreland County. With a population of 46,727, this is a highly populated ZIP code with a middle-aged community — the median age is 44.9 years. Economically, 15642 is a middle-income ZIP code: the median household income of $92,975 is above the national average.

Real estate in ZIP code 15642 represents an affordable housing market. The median home value of $236,000 is below the national average. Renters can expect to pay around $960 per month in median rent. Homeownership is strong here — 84.8% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 34% since 2019.

The population of 15642 is primarily White (93.71%). Residents are well-educated — 54.3% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 6.1%. Household income has grown by 24% since 2019.

The unemployment rate in 15642 stands at 4.2%, which is near the national average. About 16% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 76%.

Overall, ZIP code 15642 in Irwin, PA is characterized as middle-income, well-educated, a middle-aged community, and predominantly owner-occupied. With 46,727 residents, a median household income of $92,975, and a median home value of $236,000, it offers a clear picture of life in this part of Pennsylvania.