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/15605

15605

ZIP 15605 is in Greensburg, Pennsylvania, in Westmoreland County; area codes 724, 878 and 412; Eastern time. Greensburg has 3 ZIP codes; the others are 15601 and 15606.

Type
No street area
Time zone
America/New_York
County
Westmoreland
Metro area
Pittsburgh, PA
Coordinates
40.3602, -79.4398

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 15670, whose figures describe that area — not this ZIP code.

☼ Live from 15605 — Greensburg, PA

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Where 15605 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 15605
  • 🔢 Type 15605 into a pocket calculator and turn it upside down: SOgSI — not quite a word, sorry.
  • ➕ As a number, 15,605 = 5 × 3121. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11110011110101
  • 🏠 Its numerical neighbours: 15601 (Greensburg, PA, 6 mi away) and 15606 (Greensburg, PA, 7 mi away).
  • 🔄 Backwards, 15605 becomes 50651 — and that is a real ZIP code: La Porte City, IA, 675 miles away.
  • 👥 34 other ZIP codes are made of exactly the same digits (01655, 05156, 05651, 06155, 06515, 15056, …). The farthest-flung twin is 56510 in Ada, MN, 976 miles away.
  • 🧭 Farther north than 60% of all ZIP codes, and farther east than 75%.
  • 🎯1,010 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 15605 and you would come out at 40.36°S, 100.56°E — 1,030 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 03m of daylight. Shortest: 9h 17m.
🌙 The sky over 15605 today
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Source: USGS.

Land area

ZIP codes near 15605

ZIPCityDistance
15685 Southwest, PA 0.0 mi
15624 Crabtree, PA 1.7 mi
15662 Luxor, PA 2.6 mi
15670 New Alexandria, PA 3.3 mi
15635 Hannastown, PA 3.4 mi
15633 Forbes Road, PA 4.1 mi
15619 Bovard, PA 4.1 mi
15661 Loyalhanna, PA 5.0 mi
15620 Bradenville, PA 5.9 mi
15601 Greensburg, PA 6.0 mi

Find every ZIP code within 10 miles of 15605 →

Questions about this ZIP code

Where is ZIP code 15605?

15605 is in Greensburg, Pennsylvania, in Westmoreland County, part of the Pittsburgh, PA metropolitan area. Its published point location is 40.3602, -79.4398.

What county is 15605 in?

15605 lies in Westmoreland County.

What area code is 15605?

Greensburg uses area codes 724, 878 and 412, from NANPA's telephone records.

What time zone is 15605 in?

15605 uses America/New_York.

What ZIP codes are near 15605?

The closest are 15685 (0 mi), 15624 (1.7 mi), 15662 (2.6 mi), 15670 (3.3 mi) and 15635 (3.4 mi).

Is 15605 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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zipcodes.pro. “15605 ZIP Code — Greensburg, Pennsylvania (Westmoreland County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/15605

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