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/50257

50257

ZIP 50257 is Truro, Iowa, mostly in Madison County; area code 641; Central time.

Type
Standard
Time zone
America/Chicago
County
Madison +2 more
Population
914
Coordinates
41.1835, -93.8626
☼ Live from 50257 — Truro, IA

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 50257 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 50257
  • 🔢 Type 50257 into a pocket calculator and turn it upside down: LSZOS — not quite a word, sorry.
  • ➕ As a number, 50,257 = 29 × 1733. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100010001010001
  • 🏠 Its numerical neighbours: 50256 (Tracy, IA, 50 mi away) and 50258 (Union, IA, 83 mi away).
  • 🔄 Backwards, 50257 becomes 75205 — and that is a real ZIP code: Dallas, TX, 599 miles away.
  • 👥 34 other ZIP codes are made of exactly the same digits (02557, 02575, 05257, 20557, 20575, 20755, …). The farthest-flung twin is 02557 in Oak Bluffs, MA, 1,206 miles away.
  • 🧭 Farther north than 68% of all ZIP codes, and farther west than 66%.
  • 🎯265 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 50257 and you would come out at 41.18°S, 86.14°E — 955 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 09m of daylight. Shortest: 9h 12m.
  • 📏 At 43.8 square miles of land, 50257 is bigger than 56% of ZIP codes — room for about 33 Central Parks.
🌙 The sky over 50257 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population914This ZIP914
Households309This ZIP309
Housing units349This ZIP349
Median age38.2This ZIP38.2Iowa38.6US 38.9
Median household income$94,375This ZIP$94,375Iowa$75,059US $80,734
Median home value$226,200This ZIP$226,200Iowa$208,000US $332,700
Median gross rent$1,063This ZIP$1,063Iowa$972US $1,413
Bachelor's degree or higher23.8%This ZIP23.8%
Mean commute39.6 minThis ZIP39.6 min
Population density20.9 / sq miThis ZIP20.9 / sq mi

Business and tax activity

Business establishments16This ZIP16
Employees45This ZIP45
Annual payroll$2,673,000This ZIP$2,673,000
Tax returns filed490This ZIP490
Total adjusted gross income$35,760,000This ZIP$35,760,000

Land area

Land area43.80 sq miThis ZIP43.80 sq mi
Water area0.00 sq miThis ZIP0.00 sq mi

Counties 50257 spans

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

CountyShare of this ZIP
Madison County 75.8%
Clarke County 20.5%
Warren County 3.7%

Other place names in 50257

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

ZIP codes near 50257

ZIPCityDistance
50222 Peru, IA 5.5 mi
50210 New Virginia, IA 8.6 mi
50240 Saint Charles, IA 8.6 mi
50241 Saint Marys, IA 10.9 mi
50218 Patterson, IA 11.4 mi
50213 Osceola, IA 11.6 mi
50174 Murray, IA 12.1 mi
50149 Lorimor, IA 12.3 mi
50033 Bevington, IA 12.7 mi
50273 Winterset, IA 13.8 mi

Find every ZIP code within 10 miles of 50257 →

Questions about this ZIP code

Where is ZIP code 50257?

50257 is in Truro, Iowa, in Madison County, part of the Des Moines-West Des Moines, IA metropolitan area. Its published point location is 41.1835, -93.8626.

What county is 50257 in?

50257 spans 3 counties: Madison County, Clarke County and Warren County. Most of it falls in Madison 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 50257?

Truro uses area code 641, from NANPA's telephone records.

What time zone is 50257 in?

50257 uses America/Chicago.

How many people live in 50257?

About 914 people live in ZIP code 50257, in 309 households, at 20.9 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 50257?

$94,375 a year, against $75,059 across Iowa.

What ZIP codes are near 50257?

The closest are 50222 (5.5 mi), 50210 (8.6 mi), 50240 (8.6 mi), 50241 (10.9 mi) and 50218 (11.4 mi).

Is 50257 a PO Box ZIP code?

50257 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “50257 ZIP Code — Truro, Iowa (Madison County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/50257

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/50257.json

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