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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/17124

17124

ZIP 17124 is in Harrisburg, Pennsylvania, in Dauphin County; area codes 717 and 223; Eastern time. Harrisburg has 26 ZIP codes in all.

Type
No street area
Time zone
America/New_York
County
Dauphin
Coordinates
40.2675, -76.8860

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 17102, whose figures describe that area — not this ZIP code.

☼ Live from 17124 — Harrisburg, PA

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Where 17124 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 17124
  • 🔢 Type 17124 into a pocket calculator and turn it upside down: hZILI — not quite a word, sorry.
  • ➕ As a number, 17,124 = 2 × 2 × 3 × 1427. Its digits add up to 15, a total 1,657 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 100001011100100
  • 🏠 Its numerical neighbours: 17123 (Harrisburg, PA, 0 mi away) and 17125 (Harrisburg, PA, 0 mi away).
  • 🔄 Backwards, 17124 becomes 42171 — and that is a real ZIP code: Smiths Grove, KY, 548 miles away.
  • 👥 32 other ZIP codes are made of exactly the same digits (11247, 11427, 11724, 11742, 12147, 12174, …). The farthest-flung twin is 74121 in Tulsa, OK, 1,075 miles away.
  • 🧭 Farther north than 59% of all ZIP codes, and farther east than 82%.
  • 🎯1,145 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 17124 and you would come out at 40.27°S, 103.11°E — 913 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 03m of daylight. Shortest: 9h 18m.
🌙 The sky over 17124 today
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Source: USGS.

Land area

ZIP codes near 17124

ZIPCityDistance
17123 Harrisburg, PA 0.1 mi
17125 Harrisburg, PA 0.2 mi
17120 Harrisburg, PA 0.2 mi
17130 Harrisburg, PA 0.2 mi
17128 Harrisburg, PA 0.4 mi
17127 Harrisburg, PA 0.5 mi
17129 Harrisburg, PA 0.5 mi
17126 Harrisburg, PA 0.5 mi
17101 Harrisburg, PA 0.7 mi
17102 Harrisburg, PA 0.9 mi

Find every ZIP code within 10 miles of 17124 →

Questions about this ZIP code

Where is ZIP code 17124?

17124 is in Harrisburg, Pennsylvania, in Dauphin County, part of the Harrisburg-Carlisle, PA metropolitan area. Its published point location is 40.2675, -76.8860.

What county is 17124 in?

17124 lies in Dauphin County.

What area code is 17124?

Harrisburg uses area codes 717 and 223, from NANPA's telephone records.

What time zone is 17124 in?

17124 uses America/New_York.

What ZIP codes are near 17124?

The closest are 17123 (0.1 mi), 17125 (0.2 mi), 17120 (0.2 mi), 17130 (0.2 mi) and 17128 (0.4 mi).

Is 17124 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. “17124 ZIP Code — Harrisburg, Pennsylvania (Dauphin County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/17124

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