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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/45374

45374

ZIP 45374 is in Troy, Ohio, in Miami County; area code 937; Eastern time. Troy has 2 ZIP codes; the other is 45373.

Type
No street area
Time zone
America/New_York
County
Miami
Coordinates
40.0400, -84.2298

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 45373, whose figures describe that area — not this ZIP code.

☼ Live from 45374 — Troy, OH

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Where 45374 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 45374
  • 🔢 Type 45374 into a pocket calculator and turn it upside down: hLESh — not quite a word, sorry.
  • ➕ As a number, 45,374 = 2 × 7 × 7 × 463. Its digits add up to 23, a total 2,533 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1011000100111110
  • 🏠 Its numerical neighbours: 45373 (Troy, OH, 2 mi away) and 45377 (Vandalia, OH, 9 mi away).
  • 🔄 Backwards, 45374 becomes 47354 — and that is a real ZIP code: Losantville, IN, 51 miles away.
  • 👥 33 other ZIP codes are made of exactly the same digits (34475, 34745, 35447, 35474, 35744, 37544, …). The farthest-flung twin is 73544 in Gould, OK, 929 miles away.
  • 🧭 Farther north than 57% of all ZIP codes, and farther east than 59%.
  • 🎯760 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 45374 and you would come out at 40.04°S, 95.77°E — 1,250 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 01m of daylight. Shortest: 9h 19m.
🌙 The sky over 45374 today
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Source: USGS.

Land area

ZIP codes near 45374

ZIPCityDistance
45373 Troy, OH 1.9 mi
45339 Ludlow Falls, OH 6.2 mi
45359 Pleasant Hill, OH 6.4 mi
45312 Casstown, OH 7.3 mi
45371 Tipp City, OH 7.6 mi
45383 West Milton, OH 7.9 mi
45356 Piqua, OH 8.5 mi
45318 Covington, OH 8.9 mi
45377 Vandalia, OH 9.4 mi
45326 Fletcher, OH 9.9 mi

Find every ZIP code within 10 miles of 45374 →

Questions about this ZIP code

Where is ZIP code 45374?

45374 is in Troy, Ohio, in Miami County, part of the Dayton-Kettering-Beavercreek, OH metropolitan area. Its published point location is 40.0400, -84.2298.

What county is 45374 in?

45374 lies in Miami County.

What area code is 45374?

Troy uses area code 937, from NANPA's telephone records.

What time zone is 45374 in?

45374 uses America/New_York.

What ZIP codes are near 45374?

The closest are 45373 (1.9 mi), 45339 (6.2 mi), 45359 (6.4 mi), 45312 (7.3 mi) and 45371 (7.6 mi).

Is 45374 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. “45374 ZIP Code — Troy, Ohio (Miami County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/45374

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/45374.json

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