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zipcodes.pro — ZIP/15661

15661

ZIP 15661 is Loyalhanna, Pennsylvania, in Westmoreland County; area code 724; Eastern time.

Type
Standard
Time zone
America/New_York
County
Westmoreland
Metro area
Pittsburgh, PA
Population
858
Coordinates
40.3219, -79.3599
☼ Live from 15661 — Loyalhanna, PA

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Where 15661 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 15661
  • 🔢 Type 15661 into a pocket calculator and turn it upside down: IggSI — not quite a word, sorry.
  • ➕ 15661 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11110100101101
  • 🏠 Its numerical neighbours: 15660 (Lowber, PA, 22 mi away) and 15662 (Luxor, PA, 6 mi away).
  • 🔄 Backwards, 15661 becomes 16651 — and that is a real ZIP code: Houtzdale, PA, 63 miles away.
  • 👥 12 other ZIP codes are made of exactly the same digits (11566, 15616, 16156, 16651, 56116, 56161, …). The farthest-flung twin is 56116 in Beaver Creek, MN, 902 miles away.
  • 🧭 Farther north than 59% of all ZIP codes, and farther east than 76%.
  • 🎯1,015 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 15661 and you would come out at 40.32°S, 100.64°E — 1,025 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 03m of daylight. Shortest: 9h 17m.
  • 📏 At 0.391 square miles of land, 15661 is bigger than 4% of ZIP codes — about 189 football fields.
🌙 The sky over 15661 today
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🌋 Shake report
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Source: USGS.

People and housing

Population858This ZIP858
Households339This ZIP339
Housing units339This ZIP339
Median age43.8This ZIP43.8Pennsylvania40.9US 38.9
Median household income$80,564This ZIP$80,564Pennsylvania$77,971US $80,734
Median home value$167,600This ZIP$167,600Pennsylvania$254,500US $332,700
Median gross rent$1,159This ZIP$1,159Pennsylvania$1,209US $1,413
Bachelor's degree or higher19.4%This ZIP19.4%
Mean commute18.1 minThis ZIP18.1 min
Population density2,194.4 / sq miThis ZIP2,194.4 / sq mi

Business and tax activity

Business establishments24This ZIP24
Employees503This ZIP503
Annual payroll$26,188,000This ZIP$26,188,000
Tax returns filed280This ZIP280
Total adjusted gross income$13,308,000This ZIP$13,308,000

Land area

Land area0.39 sq miThis ZIP0.39 sq mi
Water area0.00 sq mi

Other place names in 15661

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

ZIP codes near 15661

ZIPCityDistance
15620 Bradenville, PA 1.1 mi
15696 Youngstown, PA 2.9 mi
15671 New Derry, PA 3.3 mi
15650 Latrobe, PA 3.5 mi
15627 Derry, PA 3.7 mi
15638 Hostetter, PA 4.5 mi
15605 Greensburg, PA 5.0 mi
15685 Southwest, PA 5.0 mi
15693 Whitney, PA 5.6 mi
15662 Luxor, PA 6.4 mi

Find every ZIP code within 10 miles of 15661 →

Questions about this ZIP code

Where is ZIP code 15661?

15661 is in Loyalhanna, Pennsylvania, in Westmoreland County, part of the Pittsburgh, PA metropolitan area. Its published point location is 40.3219, -79.3599.

What county is 15661 in?

15661 lies in Westmoreland County.

What area code is 15661?

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

What time zone is 15661 in?

15661 uses America/New_York.

How many people live in 15661?

About 858 people live in ZIP code 15661, in 339 households, at 2,194.4 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 15661?

$80,564 a year, against $77,971 across Pennsylvania.

What ZIP codes are near 15661?

The closest are 15620 (1.1 mi), 15696 (2.9 mi), 15671 (3.3 mi), 15650 (3.5 mi) and 15627 (3.7 mi).

Is 15661 a PO Box ZIP code?

15661 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “15661 ZIP Code — Loyalhanna, Pennsylvania (Westmoreland County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/15661

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