15131
ZIP 15131 is in Mckeesport, Pennsylvania, mostly in Allegheny County; Eastern time. Mckeesport has 5 ZIP codes; the others are 15132, 15133, 15134 and 15135.
- Type
- Standard
- Time zone
- America/New_York
- County
- Allegheny +1 more
- Metro area
- Pittsburgh, PA
- Population
- 8,209
- Coordinates
- 40.3388, -79.7961
Weather right now
Asking the National Weather Service…
Where 15131 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.
- 🔢 Type 15131 into a pocket calculator and turn it upside down: IEISI — not quite a word, sorry.
- ➕ 15131 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 11, a total 714 other ZIP codes share.
- 💾In binary, the way a computer stores it:
11101100011011 - 🏠 Its numerical neighbours: 15129 (South Park, PA, 11 mi away) and 15132 (Mckeesport, PA, 2 mi away).
- 🔄 Backwards, 15131 becomes 13151, which is not a ZIP code at all.
- 👥 5 other ZIP codes are made of exactly the same digits (11351, 11531, 13115, 15311, 35111). The farthest-flung twin is 35111 in Mc Calla, AL, 632 miles away.
- 🧭 Farther north than 59% of all ZIP codes, and farther east than 75%.
- 🎯992 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 15131 and you would come out at 40.34°S, 100.20°E — 1,046 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 03m of daylight. Shortest: 9h 17m.
- 📏 At 6.6 square miles of land, 15131 is bigger than 22% of ZIP codes — room for about 5.0 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 8,209This ZIP8,209 |
|---|---|
| Households | 4,166This ZIP4,166 |
| Housing units | 4,310This ZIP4,310 |
| Median age | 55.4This ZIP55.4Pennsylvania40.9US 38.9 |
| Median household income | $61,744This ZIP$61,744Pennsylvania$77,971US $80,734 |
| Median home value | $162,700This ZIP$162,700Pennsylvania$254,500US $332,700 |
| Median gross rent | $997This ZIP$997Pennsylvania$1,209US $1,413 |
| Bachelor's degree or higher | 27.2%This ZIP27.2% |
| Mean commute | 29.3 minThis ZIP29.3 min |
| Population density | 1,242.8 / sq miThis ZIP1,242.8 / sq mi |
Business and tax activity
| Business establishments | 194This ZIP194 |
|---|---|
| Employees | 1,556This ZIP1,556 |
| Annual payroll | $58,820,000This ZIP$58,820,000 |
| Tax returns filed | 4,350This ZIP4,350 |
| Total adjusted gross income | $281,710,000This ZIP$281,710,000 |
Land area
| Land area | 6.61 sq miThis ZIP6.61 sq mi |
|---|---|
| Water area | 0.05 sq miThis ZIP0.05 sq mi |
Counties 15131 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Allegheny County | 94.8% |
| Westmoreland County | 5.3% |
Other place names in 15131
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 15131
| ZIP | City | Distance |
|---|---|---|
15047 | Greenock, PA | 1.8 mi |
15132 | Mckeesport, PA | 2.5 mi |
15137 | North Versailles, PA | 2.6 mi |
15135 | Mckeesport, PA | 2.8 mi |
15028 | Coulters, PA | 3.0 mi |
15035 | East Mc Keesport, PA | 3.2 mi |
15615 | Ardara, PA | 3.6 mi |
15134 | Mckeesport, PA | 3.6 mi |
15110 | Duquesne, PA | 3.7 mi |
15148 | Wilmerding, PA | 3.8 mi |
Find every ZIP code within 10 miles of 15131 →
Questions about this ZIP code
Where is ZIP code 15131?
15131 is in Mckeesport, Pennsylvania, in Allegheny County, part of the Pittsburgh, PA metropolitan area. Its published point location is 40.3388, -79.7961.
What county is 15131 in?
15131 spans 2 counties: Allegheny County and Westmoreland County. Most of it falls in Allegheny 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 time zone is 15131 in?
15131 uses America/New_York.
How many people live in 15131?
About 8,209 people live in ZIP code 15131, in 4,166 households, at 1,242.8 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 15131?
$61,744 a year, against $77,971 across Pennsylvania.
What ZIP codes are near 15131?
The closest are 15047 (1.8 mi), 15132 (2.5 mi), 15137 (2.6 mi), 15135 (2.8 mi) and 15028 (3 mi).
Is 15131 a PO Box ZIP code?
15131 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “15131 ZIP Code — Mckeesport, Pennsylvania (Allegheny County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/15131
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/15131.json Underlying data is public domain or openly licensed — sources, vintages and licences.