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zipcodes.pro — ZIP/15642

15642

ZIP 15642 is Irwin, Pennsylvania, mostly in Westmoreland County; area code 724; Eastern time.

Type
Standard
Time zone
America/New_York
County
Westmoreland +1 more
Metro area
Pittsburgh, PA
Population
46,325
Coordinates
40.3193, -79.7237
☼ Live from 15642 — Irwin, PA

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Where 15642 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 15642
  • 🔢 Type 15642 into a pocket calculator and turn it upside down: ZhgSI — not quite a word, sorry.
  • ➕ As a number, 15,642 = 2 × 3 × 3 × 11 × 79. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11110100011010
  • 🏠 Its numerical neighbours: 15641 (Hyde Park, PA, 23 mi away) and 15644 (Jeannette, PA, 6 mi away).
  • 🔄 Backwards, 15642 becomes 24651 — and that is a real ZIP code: Tazewell, VA, 244 miles away.
  • 👥 57 other ZIP codes are made of exactly the same digits (12456, 12465, 12546, 12564, 14265, 14526, …). The farthest-flung twin is 56142 in Ivanhoe, MN, 888 miles away.
  • 🧭 Farther north than 59% of all ZIP codes, and farther east than 75%.
  • 🎯996 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 15642 and you would come out at 40.32°S, 100.28°E — 1,042 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 03m of daylight. Shortest: 9h 17m.
  • 📏 At 46.0 square miles of land, 15642 is bigger than 57% of ZIP codes — room for about 35 Central Parks.
🌙 The sky over 15642 today
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🌋 Shake report
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Source: USGS.

People and housing

Population46,325This ZIP46,325
Households19,251This ZIP19,251
Housing units20,192This ZIP20,192
Median age45.0This ZIP45.0Pennsylvania40.9US 38.9
Median household income$97,706This ZIP$97,706Pennsylvania$77,971US $80,734
Median home value$243,800This ZIP$243,800Pennsylvania$254,500US $332,700
Median gross rent$1,008This ZIP$1,008Pennsylvania$1,209US $1,413
Bachelor's degree or higher42.1%This ZIP42.1%
Mean commute28.4 minThis ZIP28.4 min
Population density1,006.3 / sq miThis ZIP1,006.3 / sq mi

Business and tax activity

Business establishments995This ZIP995
Employees12,433This ZIP12,433
Annual payroll$581,642,000This ZIP$581,642,000
Tax returns filed24,080This ZIP24,080
Total adjusted gross income$2,168,015,000This ZIP$2,168,015,000

Land area

Land area46.04 sq miThis ZIP46.04 sq mi
Water area0.12 sq miThis ZIP0.12 sq mi

Counties 15642 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Westmoreland County 98.1%
Allegheny County 1.9%

Other place names in 15642

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 15642

ZIPCityDistance
15647 Larimer, PA 1.6 mi
15678 Rillton, PA 2.4 mi
15692 Westmoreland City, PA 2.5 mi
15691 Wendel, PA 2.6 mi
15615 Ardara, PA 2.9 mi
15665 Manor, PA 3.5 mi
15047 Greenock, PA 3.8 mi
15611 Adamsburg, PA 3.8 mi
15131 Mckeesport, PA 4.0 mi
15637 Herminie, PA 4.1 mi

Find every ZIP code within 10 miles of 15642 →

Questions about this ZIP code

Where is ZIP code 15642?

15642 is in Irwin, Pennsylvania, in Westmoreland County, part of the Pittsburgh, PA metropolitan area. Its published point location is 40.3193, -79.7237.

What county is 15642 in?

15642 spans 2 counties: Westmoreland County and Allegheny County. Most of it falls in Westmoreland County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 15642?

Irwin uses area code 724, from NANPA's telephone records.

What time zone is 15642 in?

15642 uses America/New_York.

How many people live in 15642?

About 46,325 people live in ZIP code 15642, in 19,251 households, at 1,006.3 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 15642?

$97,706 a year, against $77,971 across Pennsylvania.

What ZIP codes are near 15642?

The closest are 15647 (1.6 mi), 15678 (2.4 mi), 15692 (2.5 mi), 15691 (2.6 mi) and 15615 (2.9 mi).

Is 15642 a PO Box ZIP code?

15642 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “15642 ZIP Code — Irwin, Pennsylvania (Westmoreland County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/15642

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