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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/48059

48059

ZIP 48059 is Fort Gratiot, Michigan, in St. Clair County; area code 810; Eastern time.

Type
Standard
Time zone
America/Detroit
County
St. Clair
Population
15,499
Coordinates
43.0888, -82.4884
☼ Live from 48059 — Fort Gratiot, MI

Weather right now

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Local time: —

Where 48059 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 48059
  • 🔢 Type 48059 into a pocket calculator and turn it upside down: GSOBh — not quite a word, sorry.
  • ➕ As a number, 48,059 = 11 × 17 × 257. Its digits add up to 26, a total 2,038 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1011101110111011
  • 🏠 Its numerical neighbours: 48054 (East China, MI, 22 mi away) and 48060 (Port Huron, MI, 7 mi away).
  • 🔄 Backwards, 48059 becomes 95084, which is not a ZIP code at all.
  • 👥 46 other ZIP codes are made of exactly the same digits (04859, 04958, 04985, 05489, 05849, 09845, …). The farthest-flung twin is 09845 in APO AE, a military post office, 5,168 miles away.
  • 🧭 Farther north than 83% of all ZIP codes, and farther east than 65%.
  • 🎯862 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 48059 and you would come out at 43.09°S, 97.51°E — 1,261 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 22m of daylight. Shortest: 8h 59m.
  • 📏 At 31.7 square miles of land, 48059 is bigger than 47% of ZIP codes — room for about 24 Central Parks.
🌙 The sky over 48059 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population15,499This ZIP15,499
Households6,654This ZIP6,654
Housing units7,422This ZIP7,422
Median age48.6This ZIP48.6Michigan40.2US 38.9
Median household income$80,062This ZIP$80,062Michigan$72,875US $80,734
Median home value$221,700This ZIP$221,700Michigan$231,600US $332,700
Median gross rent$994This ZIP$994Michigan$1,129US $1,413
Bachelor's degree or higher28.9%This ZIP28.9%
Mean commute24.5 minThis ZIP24.5 min
Population density489.0 / sq miThis ZIP489.0 / sq mi

Business and tax activity

Business establishments361This ZIP361
Employees5,104This ZIP5,104
Annual payroll$191,591,000This ZIP$191,591,000
Tax returns filed7,740This ZIP7,740
Total adjusted gross income$574,013,000This ZIP$574,013,000

Land area

Land area31.70 sq miThis ZIP31.70 sq mi
Water area7.21 sq miThis ZIP7.21 sq mi

Other place names in 48059

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 48059

ZIPCityDistance
48049 North Street, MI 5.3 mi
48032 Jeddo, MI 6.3 mi
48060 Port Huron, MI 7.4 mi
48061 Port Huron, MI 8.8 mi
48006 Avoca, MI 10.2 mi
48074 Smiths Creek, MI 10.3 mi
48450 Lexington, MI 11.6 mi
48040 Marysville, MI 12.3 mi
48027 Goodells, MI 14.4 mi
48422 Croswell, MI 14.6 mi

Find every ZIP code within 10 miles of 48059 →

Questions about this ZIP code

Where is ZIP code 48059?

48059 is in Fort Gratiot, Michigan, in St. Clair County, part of the Detroit-Warren-Dearborn, MI metropolitan area. Its published point location is 43.0888, -82.4884.

What county is 48059 in?

48059 lies in St. Clair County.

What area code is 48059?

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

What time zone is 48059 in?

48059 uses America/Detroit.

How many people live in 48059?

About 15,499 people live in ZIP code 48059, in 6,654 households, at 489.0 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 48059?

$80,062 a year, against $72,875 across Michigan.

What ZIP codes are near 48059?

The closest are 48049 (5.3 mi), 48032 (6.3 mi), 48060 (7.4 mi), 48061 (8.8 mi) and 48006 (10.2 mi).

Is 48059 a PO Box ZIP code?

48059 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “48059 ZIP Code — Fort Gratiot, Michigan (St. Clair County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/48059

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