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zipcodes.pro — ZIP/15551

15551

ZIP 15551 is Markleton, Pennsylvania, in Somerset County; area code 814; Eastern time.

Type
Standard
Time zone
America/New_York
County
Somerset
Metro area
Somerset, PA
Population
609
Coordinates
39.8682, -79.2848
☼ Live from 15551 — Markleton, PA

Weather right now

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Local time: —

Where 15551 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 15551
  • 🔢 Type 15551 into a pocket calculator and turn it upside down: ISSSI — not quite a word, sorry.
  • ⇆15551 reads the same backwards. It is one of only 412 palindromic ZIP codes.
  • ➕ 15551 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11110010111111
  • 🏠 Its numerical neighbours: 15550 (Manns Choice, PA, 35 mi away) and 15552 (Meyersdale, PA, 17 mi away).
  • 👥 3 other ZIP codes are made of exactly the same digits (11555, 51551, 55115). The farthest-flung twin is 51551 in Malvern, IA, 860 miles away.
  • 🧭 Farther north than 55% of all ZIP codes, and farther east than 76%.
  • 🎯1,022 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 15551 and you would come out at 39.87°S, 100.72°E — 1,007 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 00m of daylight. Shortest: 9h 20m.
  • 📏 At 24.7 square miles of land, 15551 is bigger than 42% of ZIP codes — room for about 19 Central Parks.
🌙 The sky over 15551 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population609This ZIP609
Households244This ZIP244
Housing units345This ZIP345
Median age47.5This ZIP47.5Pennsylvania40.9US 38.9
Median household income$67,727This ZIP$67,727Pennsylvania$77,971US $80,734
Median home value$160,600This ZIP$160,600Pennsylvania$254,500US $332,700
Median gross rent$742This ZIP$742Pennsylvania$1,209US $1,413
Bachelor's degree or higher11.5%This ZIP11.5%
Mean commute28.5 minThis ZIP28.5 min
Population density24.6 / sq miThis ZIP24.6 / sq mi

Business and tax activity

Business establishments7This ZIP7
Employees23This ZIP23
Annual payroll$1,043,000This ZIP$1,043,000
Tax returns filed340This ZIP340
Total adjusted gross income$20,699,000This ZIP$20,699,000

Land area

Land area24.72 sq miThis ZIP24.72 sq mi
Water area0.00 sq miThis ZIP0.00 sq mi

ZIP codes near 15551

ZIPCityDistance
15485 Ursina, PA 4.3 mi
15424 Confluence, PA 4.7 mi
15557 Rockwood, PA 5.4 mi
15540 Fort Hill, PA 5.5 mi
15411 Addison, PA 8.9 mi
15464 Mill Run, PA 9.1 mi
15542 Garrett, PA 10.9 mi
15502 Hidden Valley, PA 11.2 mi
15565 West Salisbury, PA 11.7 mi
15622 Champion, PA 11.9 mi

Find every ZIP code within 10 miles of 15551 →

Questions about this ZIP code

Where is ZIP code 15551?

15551 is in Markleton, Pennsylvania, in Somerset County, part of the Somerset, PA micropolitan area. Its published point location is 39.8682, -79.2848.

What county is 15551 in?

15551 lies in Somerset County.

What area code is 15551?

Markleton uses area code 814, from NANPA's telephone records.

What time zone is 15551 in?

15551 uses America/New_York.

How many people live in 15551?

About 609 people live in ZIP code 15551, in 244 households, at 24.6 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 15551?

$67,727 a year, against $77,971 across Pennsylvania.

What ZIP codes are near 15551?

The closest are 15485 (4.3 mi), 15424 (4.7 mi), 15557 (5.4 mi), 15540 (5.5 mi) and 15411 (8.9 mi).

Is 15551 a PO Box ZIP code?

15551 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “15551 ZIP Code — Markleton, Pennsylvania (Somerset County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/15551

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