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/54201

54201

ZIP 54201 is Algoma, Wisconsin, mostly in Kewaunee County; area codes 920 and 274; Central time.

Type
Standard
Time zone
America/Chicago
County
Kewaunee +1 more
Metro area
Green Bay, WI
Population
5,209
Coordinates
44.6268, -87.4866
☼ Live from 54201 — Algoma, WI

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 54201 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 54201
  • 🔢 Type 54201 into a pocket calculator and turn it upside down: IOZhS — not quite a word, sorry.
  • ➕ As a number, 54,201 = 3 × 7 × 29 × 89. Its digits add up to 12, a total 940 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1101001110111001
  • 🏠 Its numerical neighbours: 54182 (Zachow, WI, 44 mi away) and 54202 (Baileys Harbor, WI, 36 mi away).
  • 🔄 Backwards, 54201 becomes 10245, which is not a ZIP code at all.
  • 👥 73 other ZIP codes are made of exactly the same digits (01245, 01254, 01452, 01524, 01542, 02145, …). The farthest-flung twin is 02541 in Falmouth, MA, 876 miles away.
  • 🧭 Farther north than 90% of all ZIP codes, and farther east than 50%.
  • 🎯656 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 54201 and you would come out at 44.63°S, 92.51°E — 1,096 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 34m of daylight. Shortest: 8h 49m.
  • 📏 At 75.5 square miles of land, 54201 is bigger than 71% of ZIP codes — room for about 57 Central Parks.
🌙 The sky over 54201 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population5,209This ZIP5,209
Households2,213This ZIP2,213
Housing units2,625This ZIP2,625
Median age46.2This ZIP46.2Wisconsin40.2US 38.9
Median household income$67,542This ZIP$67,542Wisconsin$77,485US $80,734
Median home value$183,200This ZIP$183,200Wisconsin$266,500US $332,700
Median gross rent$835This ZIP$835Wisconsin$1,087US $1,413
Bachelor's degree or higher20.6%This ZIP20.6%
Mean commute22.7 minThis ZIP22.7 min
Population density69.0 / sq miThis ZIP69.0 / sq mi

Business and tax activity

Business establishments119This ZIP119
Employees1,514This ZIP1,514
Annual payroll$62,302,000This ZIP$62,302,000
Tax returns filed2,610This ZIP2,610
Total adjusted gross income$161,153,000This ZIP$161,153,000

Land area

Land area75.49 sq miThis ZIP75.49 sq mi
Water area3.65 sq miThis ZIP3.65 sq mi

Counties 54201 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Kewaunee County 91.7%
Door County 8.3%

Other place names in 54201

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

ZIP codes near 54201

ZIPCityDistance
54213 Forestville, WI 5.1 mi
54205 Casco, WI 7.3 mi
54226 Maplewood, WI 8.3 mi
54204 Brussels, WI 10.6 mi
54217 Luxemburg, WI 12.6 mi
54216 Kewaunee, WI 13.6 mi
54235 Sturgeon Bay, WI 16.0 mi
54229 New Franken, WI 16.8 mi
54240 Tisch Mills, WI 21.8 mi
54311 Green Bay, WI 22.4 mi

Find every ZIP code within 10 miles of 54201 →

Questions about this ZIP code

Where is ZIP code 54201?

54201 is in Algoma, Wisconsin, in Kewaunee County, part of the Green Bay, WI metropolitan area. Its published point location is 44.6268, -87.4866.

What county is 54201 in?

54201 spans 2 counties: Kewaunee County and Door County. Most of it falls in Kewaunee County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 54201?

Algoma uses area codes 920 and 274, from NANPA's telephone records.

What time zone is 54201 in?

54201 uses America/Chicago.

How many people live in 54201?

About 5,209 people live in ZIP code 54201, in 2,213 households, at 69.0 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 54201?

$67,542 a year, against $77,485 across Wisconsin.

What ZIP codes are near 54201?

The closest are 54213 (5.1 mi), 54205 (7.3 mi), 54226 (8.3 mi), 54204 (10.6 mi) and 54217 (12.6 mi).

Is 54201 a PO Box ZIP code?

54201 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “54201 ZIP Code — Algoma, Wisconsin (Kewaunee County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/54201

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/54201.json

Underlying data is public domain or openly licensed — sources, vintages and licences.