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/48551

48551

ZIP 48551 is in Flint, Michigan, in Genesee County; area code 810; Eastern time. Flint has 17 ZIP codes in all.

Type
No street area
Time zone
America/Detroit
County
Genesee
Metro area
Flint, MI
Coordinates
42.9790, -83.7131

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 48507, whose figures describe that area — not this ZIP code.

☼ Live from 48551 — Flint, MI

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Local time: —

Where 48551 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 48551
  • 🔢 Type 48551 into a pocket calculator and turn it upside down: ISSBh — not quite a word, sorry.
  • ➕ As a number, 48,551 = 47 × 1033. Its digits add up to 23, a total 2,533 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1011110110100111
  • 🏠 Its numerical neighbours: 48550 (Flint, MI, 4 mi away) and 48552 (Flint, MI, 0 mi away).
  • 🔄 Backwards, 48551 becomes 15584, which is not a ZIP code at all.
  • 👥 23 other ZIP codes are made of exactly the same digits (14558, 14585, 14855, 15458, 15485, 15548, …). The farthest-flung twin is 85145 in Red Rock, AZ, 1,665 miles away.
  • 🧭 Farther north than 82% of all ZIP codes, and farther east than 61%.
  • 🎯799 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 48551 and you would come out at 42.98°S, 96.29°E — 1,311 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 22m of daylight. Shortest: 9h 00m.
🌙 The sky over 48551 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments7This ZIP7
Employees4,924This ZIP4,924
Annual payroll$418,072,000This ZIP$418,072,000

Land area

ZIP codes near 48551

ZIPCityDistance
48552 Flint, MI 0.1 mi
48553 Flint, MI 0.5 mi
48507 Flint, MI 0.9 mi
48503 Flint, MI 1.4 mi
48531 Flint, MI 1.9 mi
48555 Flint, MI 2.2 mi
48502 Flint, MI 2.7 mi
48529 Burton, MI 2.8 mi
48501 Flint, MI 3.5 mi
48550 Flint, MI 4.1 mi

Find every ZIP code within 10 miles of 48551 →

Questions about this ZIP code

Where is ZIP code 48551?

48551 is in Flint, Michigan, in Genesee County, part of the Flint, MI metropolitan area. Its published point location is 42.9790, -83.7131.

What county is 48551 in?

48551 lies in Genesee County.

What area code is 48551?

Flint uses area code 810, from NANPA's telephone records.

What time zone is 48551 in?

48551 uses America/Detroit.

What ZIP codes are near 48551?

The closest are 48552 (0.1 mi), 48553 (0.5 mi), 48507 (0.9 mi), 48503 (1.4 mi) and 48531 (1.9 mi).

Is 48551 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. “48551 ZIP Code — Flint, Michigan (Genesee County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/48551

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curl https://zipcodes.pro/zip/48551.json

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