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/51593

51593

ZIP 51593 is in Harlan, Iowa, in Pottawattamie County; area code 712; Central time. Harlan has 2 ZIP codes; the other is 51537.

Type
No street area
Time zone
America/Chicago
County
Pottawattamie
Metro area
Omaha, NE-IA
Coordinates
41.4980, -95.3636

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 51521, whose figures describe that area — not this ZIP code.

☼ Live from 51593 — Harlan, IA

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Where 51593 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 51593
  • 🔢 Type 51593 into a pocket calculator and turn it upside down: EGSIS — not quite a word, sorry.
  • ➕ 51593 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 23, a total 2,533 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100100110001001
  • 🏠 Its numerical neighbours: 51591 (Red Oak, IA, 34 mi away) and 51601 (Shenandoah, IA, 53 mi away).
  • 🔄 Backwards, 51593 becomes 39515, which is not a ZIP code at all.
  • 👥 24 other ZIP codes are made of exactly the same digits (15359, 15539, 15935, 15953, 19355, 19535, …). The farthest-flung twin is 95531 in Crescent City, CA, 1,478 miles away.
  • 🧭 Farther north than 71% of all ZIP codes, and farther west than 69%.
  • 🎯204 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 51593 and you would come out at 41.50°S, 84.64°E — 882 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 11m of daylight. Shortest: 9h 10m.
🌙 The sky over 51593 today
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Source: USGS.

Land area

ZIP codes near 51593

ZIPCityDistance
51521 Avoca, IA 1.3 mi
51570 Shelby, IA 5.7 mi
51536 Hancock, IA 7.9 mi
51577 Walnut, IA 8.6 mi
51537 Harlan, IA 11.1 mi
51553 Minden, IA 11.1 mi
51563 Persia, IA 12.5 mi
51560 Oakland, IA 12.9 mi
51552 Marne, IA 12.9 mi
51565 Portsmouth, IA 13.0 mi

Find every ZIP code within 10 miles of 51593 →

Questions about this ZIP code

Where is ZIP code 51593?

51593 is in Harlan, Iowa, in Pottawattamie County, part of the Omaha, NE-IA metropolitan area. Its published point location is 41.4980, -95.3636.

What county is 51593 in?

51593 lies in Pottawattamie County.

What area code is 51593?

Harlan uses area code 712, from NANPA's telephone records.

What time zone is 51593 in?

51593 uses America/Chicago.

What ZIP codes are near 51593?

The closest are 51521 (1.3 mi), 51570 (5.7 mi), 51536 (7.9 mi), 51577 (8.6 mi) and 51537 (11.1 mi).

Is 51593 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. “51593 ZIP Code — Harlan, Iowa (Pottawattamie County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51593

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curl https://zipcodes.pro/zip/51593.json

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