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/53057

53057

ZIP 53057 is Mount Calvary, Wisconsin, in Fond du Lac County; area code 920; Central time.

Type
Standard
Time zone
America/Chicago
County
Fond du Lac
Metro area
Fond du Lac, WI
Population
1,882
Coordinates
43.7947, -88.2368
☼ Live from 53057 — Mount Calvary, WI

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 53057 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 53057
  • 🔢 Type 53057 into a pocket calculator and turn it upside down: LSOES — not quite a word, sorry.
  • ➕ As a number, 53,057 = 17 × 3121. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100111101000001
  • 🏠 Its numerical neighbours: 53056 (Merton, WI, 45 mi away) and 53058 (Nashotah, WI, 48 mi away).
  • 🔄 Backwards, 53057 becomes 75035 — and that is a real ZIP code: Frisco, TX, 866 miles away.
  • 👥 34 other ZIP codes are made of exactly the same digits (03575, 03755, 05357, 05735, 05753, 30557, …). The farthest-flung twin is 70355 in Gheens, LA, 982 miles away.
  • 🧭 Farther north than 87% of all ZIP codes, and farther west than 51%.
  • 🎯598 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 53057 and you would come out at 43.79°S, 91.76°E — 1,088 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 28m of daylight. Shortest: 8h 54m.
  • 📏 At 31.6 square miles of land, 53057 is bigger than 47% of ZIP codes — room for about 24 Central Parks.
🌙 The sky over 53057 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,882This ZIP1,882
Households738This ZIP738
Housing units765This ZIP765
Median age49.4This ZIP49.4Wisconsin40.2US 38.9
Median household income$105,909This ZIP$105,909Wisconsin$77,485US $80,734
Median home value$238,200This ZIP$238,200Wisconsin$266,500US $332,700
Median gross rent$682This ZIP$682Wisconsin$1,087US $1,413
Bachelor's degree or higher18.8%This ZIP18.8%
Mean commute21.3 minThis ZIP21.3 min
Population density59.6 / sq miThis ZIP59.6 / sq mi

Business and tax activity

Business establishments40This ZIP40
Employees478This ZIP478
Annual payroll$22,877,000This ZIP$22,877,000
Tax returns filed790This ZIP790
Total adjusted gross income$66,797,000This ZIP$66,797,000

Land area

Land area31.56 sq miThis ZIP31.56 sq mi
Water area0.45 sq miThis ZIP0.45 sq mi

Other place names in 53057

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

ZIP codes near 53057

ZIPCityDistance
53079 Saint Cloud, WI 2.3 mi
53023 Glenbeulah, WI 6.6 mi
53049 Malone, WI 6.8 mi
53019 Eden, WI 7.6 mi
53026 Greenbush, WI 7.7 mi
54937 Fond Du Lac, WI 9.4 mi
54935 Fond Du Lac, WI 9.9 mi
54936 Fond Du Lac, WI 10.2 mi
53011 Cascade, WI 11.8 mi
53061 New Holstein, WI 11.9 mi

Find every ZIP code within 10 miles of 53057 →

Questions about this ZIP code

Where is ZIP code 53057?

53057 is in Mount Calvary, Wisconsin, in Fond du Lac County, part of the Fond du Lac, WI metropolitan area. Its published point location is 43.7947, -88.2368.

What county is 53057 in?

53057 lies in Fond du Lac County.

What area code is 53057?

Mount Calvary uses area code 920, from NANPA's telephone records.

What time zone is 53057 in?

53057 uses America/Chicago.

How many people live in 53057?

About 1,882 people live in ZIP code 53057, in 738 households, at 59.6 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 53057?

$105,909 a year, against $77,485 across Wisconsin.

What ZIP codes are near 53057?

The closest are 53079 (2.3 mi), 53023 (6.6 mi), 53049 (6.8 mi), 53019 (7.6 mi) and 53026 (7.7 mi).

Is 53057 a PO Box ZIP code?

53057 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “53057 ZIP Code — Mount Calvary, Wisconsin (Fond du Lac County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/53057

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/53057.json

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