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/48231

48231

ZIP 48231 is in Detroit, Michigan, in Wayne County; area code 313; Eastern time. Detroit has 46 ZIP codes in all.

Type
No street area
Time zone
America/Detroit
County
Wayne
Coordinates
42.3314, -83.0458

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 48226, whose figures describe that area — not this ZIP code.

☼ Live from 48231 — Detroit, MI

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Where 48231 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 48231
  • 🔢 Type 48231 into a pocket calculator and turn it upside down: IEZBh — not quite a word, sorry.
  • ➕ As a number, 48,231 = 3 × 3 × 23 × 233. Its digits add up to 18, a total 2,332 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1011110001100111
  • 🏠 Its numerical neighbours: 48230 (Grosse Pointe, MI, 7 mi away) and 48232 (Detroit, MI, 0 mi away).
  • 🔄 Backwards, 48231 becomes 13284, which is not a ZIP code at all.
  • 👥 55 other ZIP codes are made of exactly the same digits (12438, 12483, 12834, 12843, 13428, 13482, …). The farthest-flung twin is 84123 in Salt Lake City, UT, 1,492 miles away.
  • 🧭 Farther north than 78% of all ZIP codes, and farther east than 63%.
  • 🎯826 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 48231 and you would come out at 42.33°S, 96.95°E — 1,260 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 17m of daylight. Shortest: 9h 05m.
🌙 The sky over 48231 today
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Source: USGS.

Land area

ZIP codes near 48231

ZIPCityDistance
48232 Detroit, MI 0.0 mi
48255 Detroit, MI 0.0 mi
48264 Detroit, MI 0.0 mi
48267 Detroit, MI 0.0 mi
48268 Detroit, MI 0.0 mi
48269 Detroit, MI 0.0 mi
48272 Detroit, MI 0.0 mi
48275 Detroit, MI 0.0 mi
48279 Detroit, MI 0.0 mi
48226 Detroit, MI 0.2 mi

Find every ZIP code within 10 miles of 48231 →

Questions about this ZIP code

Where is ZIP code 48231?

48231 is in Detroit, Michigan, in Wayne County, part of the Detroit-Warren-Dearborn, MI metropolitan area. Its published point location is 42.3314, -83.0458.

What county is 48231 in?

48231 lies in Wayne County.

What area code is 48231?

Detroit uses area code 313, from NANPA's telephone records.

What time zone is 48231 in?

48231 uses America/Detroit.

What ZIP codes are near 48231?

The closest are 48232 (0 mi), 48255 (0 mi), 48264 (0 mi), 48267 (0 mi) and 48268 (0 mi).

Is 48231 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. “48231 ZIP Code — Detroit, Michigan (Wayne County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/48231

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/48231.json

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