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ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/15540

15540

ZIP 15540 is Fort Hill, Pennsylvania, in Somerset County; area code 814; Eastern time.

Type
Standard
Time zone
America/New_York
County
Somerset
Metro area
Somerset, PA
Population
418
Coordinates
39.7974, -79.2393
☼ Live from 15540 — Fort Hill, PA

Weather right now

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Local time: —

Where 15540 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 15540
  • 🔢 Type 15540 into a pocket calculator and turn it upside down: OhSSI — not quite a word, sorry.
  • ➕ As a number, 15,540 = 2 × 2 × 3 × 5 × 7 × 37. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11110010110100
  • 🏠 Its numerical neighbours: 15539 (Fishertown, PA, 41 mi away) and 15541 (Friedens, PA, 22 mi away).
  • 🔄 Backwards, 15540 becomes 04551 — and that is a real ZIP code: Bremen, ME, 581 miles away.
  • 👥 37 other ZIP codes are made of exactly the same digits (01545, 04551, 05154, 05451, 10455, 10545, …). The farthest-flung twin is 51054 in Sergeant Bluff, IA, 906 miles away.
  • 🧭 Farther north than 55% of all ZIP codes, and farther east than 76%.
  • 🎯1,024 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 15540 and you would come out at 39.80°S, 100.76°E — 1,002 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 00m of daylight. Shortest: 9h 21m.
  • 📏 At 43.0 square miles of land, 15540 is bigger than 55% of ZIP codes — room for about 33 Central Parks.
🌙 The sky over 15540 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population418This ZIP418
Households173This ZIP173
Housing units343This ZIP343
Median age51.0This ZIP51.0Pennsylvania40.9US 38.9
Median household income$70,875This ZIP$70,875Pennsylvania$77,971US $80,734
Median home value$206,800This ZIP$206,800Pennsylvania$254,500US $332,700
Median gross rent$692This ZIP$692Pennsylvania$1,209US $1,413
Bachelor's degree or higher13.3%This ZIP13.3%
Mean commute35.5 minThis ZIP35.5 min
Population density9.7 / sq miThis ZIP9.7 / sq mi

Business and tax activity

Business establishments5This ZIP5
Employees27This ZIP27
Annual payroll$2,124,000This ZIP$2,124,000
Tax returns filed160This ZIP160
Total adjusted gross income$8,137,000This ZIP$8,137,000

Land area

Land area43.00 sq miThis ZIP43.00 sq mi
Water area0.60 sq miThis ZIP0.60 sq mi

ZIP codes near 15540

ZIPCityDistance
15485 Ursina, PA 5.0 mi
15551 Markleton, PA 5.5 mi
15411 Addison, PA 6.5 mi
15424 Confluence, PA 6.5 mi
15565 West Salisbury, PA 7.1 mi
15562 Springs, PA 8.0 mi
15557 Rockwood, PA 8.4 mi
15558 Salisbury, PA 8.8 mi
15532 Boynton, PA 9.8 mi
15542 Garrett, PA 9.8 mi

Find every ZIP code within 10 miles of 15540 →

Questions about this ZIP code

Where is ZIP code 15540?

15540 is in Fort Hill, Pennsylvania, in Somerset County, part of the Somerset, PA micropolitan area. Its published point location is 39.7974, -79.2393.

What county is 15540 in?

15540 lies in Somerset County.

What area code is 15540?

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

What time zone is 15540 in?

15540 uses America/New_York.

How many people live in 15540?

About 418 people live in ZIP code 15540, in 173 households, at 9.7 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 15540?

$70,875 a year, against $77,971 across Pennsylvania.

What ZIP codes are near 15540?

The closest are 15485 (5 mi), 15551 (5.5 mi), 15411 (6.5 mi), 15424 (6.5 mi) and 15565 (7.1 mi).

Is 15540 a PO Box ZIP code?

15540 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “15540 ZIP Code — Fort Hill, Pennsylvania (Somerset County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/15540

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