Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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/15255

15255

ZIP 15255 is in Pittsburgh, Pennsylvania, in Allegheny County; area codes 412 and 878; Eastern time. Pittsburgh has 75 ZIP codes in all.

Type
No street area
Time zone
America/New_York
County
Allegheny
Metro area
Pittsburgh, PA
Coordinates
40.4344, -80.0248

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 15211, whose figures describe that area — not this ZIP code.

☼ Live from 15255 — Pittsburgh, PA

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Where 15255 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 15255
  • 🔢 Type 15255 into a pocket calculator and turn it upside down: SSZSI — not quite a word, sorry.
  • ➕ As a number, 15,255 = 3 × 3 × 3 × 5 × 113. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11101110010111
  • 🏠 Its numerical neighbours: 15254 (Pittsburgh, PA, 0 mi away) and 15257 (Pittsburgh, PA, 0 mi away).
  • 🔄 Backwards, 15255 becomes 55251, which is not a ZIP code at all.
  • 👥 9 other ZIP codes are made of exactly the same digits (12555, 15552, 21555, 25515, 51525, 51552, …). The farthest-flung twin is 51525 in Carson, IA, 806 miles away.
  • 🧭 Farther north than 60% of all ZIP codes, and farther east than 74%.
  • 🎯979 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 15255 and you would come out at 40.43°S, 99.98°E — 1,060 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 04m of daylight. Shortest: 9h 17m.
🌙 The sky over 15255 today
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Source: USGS.

Land area

ZIP codes near 15255

ZIPCityDistance
15230 Pittsburgh, PA 0.0 mi
15240 Pittsburgh, PA 0.0 mi
15242 Pittsburgh, PA 0.0 mi
15244 Pittsburgh, PA 0.0 mi
15250 Pittsburgh, PA 0.0 mi
15251 Pittsburgh, PA 0.0 mi
15252 Pittsburgh, PA 0.0 mi
15253 Pittsburgh, PA 0.0 mi
15254 Pittsburgh, PA 0.0 mi
15257 Pittsburgh, PA 0.0 mi

Find every ZIP code within 10 miles of 15255 →

Questions about this ZIP code

Where is ZIP code 15255?

15255 is in Pittsburgh, Pennsylvania, in Allegheny County, part of the Pittsburgh, PA metropolitan area. Its published point location is 40.4344, -80.0248.

What county is 15255 in?

15255 lies in Allegheny County.

What area code is 15255?

Pittsburgh uses area codes 412 and 878, from NANPA's telephone records.

What time zone is 15255 in?

15255 uses America/New_York.

What ZIP codes are near 15255?

The closest are 15230 (0 mi), 15240 (0 mi), 15242 (0 mi), 15244 (0 mi) and 15250 (0 mi).

Is 15255 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

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Cite this page

zipcodes.pro. “15255 ZIP Code — Pittsburgh, Pennsylvania (Allegheny County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/15255

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