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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/48039

48039

ZIP 48039 is Marine City, Michigan, in St. Clair County; area code 810; Eastern time.

Type
Standard
Time zone
America/Detroit
County
St. Clair
Population
7,437
Coordinates
42.6929, -82.5465
☼ Live from 48039 — Marine City, MI

Weather right now

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NEXRAD radar
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Local time: —

Where 48039 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 48039
  • 🔢 Type 48039 into a pocket calculator and turn it upside down: GEOBh — not quite a word, sorry.
  • ➕ As a number, 48,039 = 3 × 67 × 239. Its digits add up to 24, a total 2,425 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1011101110100111
  • 🏠 Its numerical neighbours: 48038 (Clinton Township, MI, 21 mi away) and 48040 (Marysville, MI, 15 mi away).
  • 🔄 Backwards, 48039 becomes 93084, which is not a ZIP code at all.
  • 👥 39 other ZIP codes are made of exactly the same digits (03849, 03894, 04938, 04983, 08349, 09834, …). The farthest-flung twin is 09834 in FPO AE, a military post office, 6,821 miles away.
  • 🧭 Farther north than 81% of all ZIP codes, and farther east than 64%.
  • 🎯854 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 48039 and you would come out at 42.69°S, 97.45°E — 1,250 miles from Perth, Australia, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 19m of daylight. Shortest: 9h 02m.
  • 📏 At 23.0 square miles of land, 48039 is bigger than 40% of ZIP codes — room for about 17 Central Parks.
🌙 The sky over 48039 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population7,437This ZIP7,437
Households3,266This ZIP3,266
Housing units3,656This ZIP3,656
Median age47.6This ZIP47.6Michigan40.2US 38.9
Median household income$82,755This ZIP$82,755Michigan$72,875US $80,734
Median home value$181,300This ZIP$181,300Michigan$231,600US $332,700
Median gross rent$947This ZIP$947Michigan$1,129US $1,413
Bachelor's degree or higher20.8%This ZIP20.8%
Mean commute31.8 minThis ZIP31.8 min
Population density323.2 / sq miThis ZIP323.2 / sq mi

Business and tax activity

Business establishments164This ZIP164
Employees1,541This ZIP1,541
Annual payroll$76,606,000This ZIP$76,606,000
Tax returns filed3,760This ZIP3,760
Total adjusted gross income$230,705,000This ZIP$230,705,000

Land area

Land area23.01 sq miThis ZIP23.01 sq mi
Water area1.87 sq miThis ZIP1.87 sq mi

Other place names in 48039

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

ZIP codes near 48039

ZIPCityDistance
48001 Algonac, MI 4.1 mi
48054 East China, MI 5.4 mi
48023 Fair Haven, MI 5.8 mi
48064 Casco, MI 7.9 mi
48028 Harsens Island, MI 8.6 mi
48004 Anchorville, MI 10.9 mi
48079 Saint Clair, MI 11.5 mi
48047 New Baltimore, MI 11.6 mi
48048 New Haven, MI 13.2 mi
48063 Columbus, MI 13.4 mi

Find every ZIP code within 10 miles of 48039 →

Questions about this ZIP code

Where is ZIP code 48039?

48039 is in Marine City, Michigan, in St. Clair County, part of the Detroit-Warren-Dearborn, MI metropolitan area. Its published point location is 42.6929, -82.5465.

What county is 48039 in?

48039 lies in St. Clair County.

What area code is 48039?

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

What time zone is 48039 in?

48039 uses America/Detroit.

How many people live in 48039?

About 7,437 people live in ZIP code 48039, in 3,266 households, at 323.2 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 48039?

$82,755 a year, against $72,875 across Michigan.

What ZIP codes are near 48039?

The closest are 48001 (4.1 mi), 48054 (5.4 mi), 48023 (5.8 mi), 48064 (7.9 mi) and 48028 (8.6 mi).

Is 48039 a PO Box ZIP code?

48039 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “48039 ZIP Code — Marine City, Michigan (St. Clair County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/48039

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