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/34031

34031

ZIP 34031 is military mail, not a town: APO AA, the Armed Forces Americas routing code, which covers the Americas other than Canada. APO is the Army and Air Force Post Office. Mail to it carries a unit or ship number instead of a street, at domestic US postage.

Type
Military (APO/FPO/DPO)
Time zone
America/Lima
County
none
Metro area
none
Coordinates
-12.0432, -77.0282
☼ Live from 34031 — APO AA

Weather right now

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NEXRAD radar
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Local time: —

Where 34031 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 34031
  • 🔢 Type 34031 into a pocket calculator and turn it upside down: IEOhE — not quite a word, sorry.
  • ➕ 34031 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 11, a total 714 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1000010011101111
  • 🏠 Its numerical neighbours: 34030 (APO AA, a military post office, 2,347 mi away) and 34032 (APO AA, a military post office, 669 mi away). Next door on paper, a road trip in real life.
  • 🔄 Backwards, 34031 becomes 13043 — and that is a real ZIP code: Clockville, NY, 3,807 miles away.
  • 👥 31 other ZIP codes are made of exactly the same digits (01343, 03431, 13034, 13043, 13304, 13340, …). The farthest-flung twin is 13304 in Barneveld, NY, 3,822 miles away.
  • 🧭 Farther south than 99% of all ZIP codes, and farther east than 81%.
  • 🎯3,842 miles southeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 34031 and you would come out at 12.04°N, 102.97°E — 136 miles from Phnom Penh, Cambodia, the nearest big city to that spot.
  • ☀Longest day of the year: 12h 50m of daylight. Shortest: 11h 25m.
🌙 The sky over 34031 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Land area

Questions about this ZIP code

Where is ZIP code 34031?

ZIP 34031 is military mail, not a town: APO AA, the Armed Forces Americas routing code, which covers the Americas other than Canada. APO is the Army and Air Force Post Office. Mail to it carries a unit or ship number instead of a street, at domestic US postage.

What county is 34031 in?

34031 belongs to no county — military ZIP codes are mail routing codes, not places.

Is 34031 a PO Box ZIP code?

34031 is a military (apo/fpo/dpo) ZIP code. A USPS routing code for military mail, not a geographic area.

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Cite this page

zipcodes.pro. “34031 ZIP Code — APO AA, Armed Forces Americas (Military Mail).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/34031

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/34031.json

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