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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/54143

54143

ZIP 54143 is Marinette, Wisconsin, in Marinette County; area code 715; Central time.

Type
Standard
Time zone
America/Chicago
County
Marinette
Metro area
Marinette, WI-MI
Population
15,119
Coordinates
45.0762, -87.6988
☼ Live from 54143 — Marinette, WI

Weather right now

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Where 54143 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 54143
  • 🔢 Type 54143 into a pocket calculator and turn it upside down: EhIhS — not quite a word, sorry.
  • ➕ As a number, 54,143 = 29 × 1867. Its digits add up to 17, a total 2,133 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1101001101111111
  • 🏠 Its numerical neighbours: 54141 (Little Suamico, WI, 28 mi away) and 54149 (Mountain, WI, 37 mi away).
  • 🔄 Backwards, 54143 becomes 34145 — and that is a real ZIP code: Marco Island, FL, 1,366 miles away.
  • 👥 29 other ZIP codes are made of exactly the same digits (13454, 14435, 14453, 14534, 14543, 15344, …). The farthest-flung twin is 34145 in Marco Island, FL, 1,366 miles away.
  • 🧭 Farther north than 91% of all ZIP codes, and farther east than 50%.
  • 🎯662 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 54143 and you would come out at 45.08°S, 92.30°E — 1,073 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 38m of daylight. Shortest: 8h 45m.
  • 📏 At 66.3 square miles of land, 54143 is bigger than 67% of ZIP codes — room for about 50 Central Parks.
🌙 The sky over 54143 today
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🌋 Shake report
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Source: USGS.

People and housing

Population15,119This ZIP15,119
Households6,925This ZIP6,925
Housing units7,562This ZIP7,562
Median age44.1This ZIP44.1Wisconsin40.2US 38.9
Median household income$64,491This ZIP$64,491Wisconsin$77,485US $80,734
Median home value$142,900This ZIP$142,900Wisconsin$266,500US $332,700
Median gross rent$814This ZIP$814Wisconsin$1,087US $1,413
Bachelor's degree or higher24.3%This ZIP24.3%
Mean commute13.9 minThis ZIP13.9 min
Population density228.1 / sq miThis ZIP228.1 / sq mi

Business and tax activity

Business establishments473This ZIP473
Employees9,987This ZIP9,987
Annual payroll$582,235,000This ZIP$582,235,000
Tax returns filed7,650This ZIP7,650
Total adjusted gross income$453,711,000This ZIP$453,711,000

Land area

Land area66.29 sq miThis ZIP66.29 sq mi
Water area4.92 sq miThis ZIP4.92 sq mi

Other place names in 54143

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

ZIP codes near 54143

ZIPCityDistance
54157 Peshtigo, WI 5.8 mi
54159 Porterfield, WI 10.6 mi
49858 Menominee, MI 12.5 mi
49893 Wallace, MI 15.9 mi
54153 Oconto, WI 16.2 mi
54112 Coleman, WI 17.4 mi
54139 Lena, WI 20.2 mi
49848 Ingalls, MI 21.2 mi
54209 Egg Harbor, WI 21.3 mi
49887 Stephenson, MI 21.9 mi

Find every ZIP code within 10 miles of 54143 →

Questions about this ZIP code

Where is ZIP code 54143?

54143 is in Marinette, Wisconsin, in Marinette County, part of the Marinette, WI-MI micropolitan area. Its published point location is 45.0762, -87.6988.

What county is 54143 in?

54143 lies in Marinette County.

What area code is 54143?

Marinette uses area code 715, from NANPA's telephone records.

What time zone is 54143 in?

54143 uses America/Chicago.

How many people live in 54143?

About 15,119 people live in ZIP code 54143, in 6,925 households, at 228.1 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 54143?

$64,491 a year, against $77,485 across Wisconsin.

What ZIP codes are near 54143?

The closest are 54157 (5.8 mi), 54159 (10.6 mi), 49858 (12.5 mi), 49893 (15.9 mi) and 54153 (16.2 mi).

Is 54143 a PO Box ZIP code?

54143 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “54143 ZIP Code — Marinette, Wisconsin (Marinette County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/54143

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