50240
ZIP 50240 is Saint Charles, Iowa, mostly in Madison County; area code 641; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Madison +1 more
- Metro area
- Des Moines-West Des Moines, IA
- Population
- 2,393
- Coordinates
- 41.2971, -93.7930
Weather right now
Asking the National Weather Service…
Where 50240 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.
- 🔢 Type 50240 into a pocket calculator and turn it upside down: OhZOS — not quite a word, sorry.
- ➕ As a number, 50,240 = 2 × 2 × 2 × 2 × 2 × 2 × 5 × 157. Its digits add up to 11, a total 714 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100010001000000 - 🏠 Its numerical neighbours: 50239 (Saint Anthony, IA, 66 mi away) and 50241 (Saint Marys, IA, 3 mi away).
- 🔄 Backwards, 50240 becomes 04205, which is not a ZIP code at all.
- 👥 27 other ZIP codes are made of exactly the same digits (02045, 02054, 02540, 04250, 05042, 05402, …). The farthest-flung twin is 04250 in Lisbon, ME, 1,213 miles away.
- 🧭 Farther north than 69% of all ZIP codes, and farther west than 65%.
- 🎯271 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 50240 and you would come out at 41.30°S, 86.21°E — 952 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 10m of daylight. Shortest: 9h 11m.
- 📏 At 75.3 square miles of land, 50240 is bigger than 71% of ZIP codes — room for about 57 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 2,393This ZIP2,393 |
|---|---|
| Households | 861This ZIP861 |
| Housing units | 915This ZIP915 |
| Median age | 43.6This ZIP43.6Iowa38.6US 38.9 |
| Median household income | $107,563This ZIP$107,563Iowa$75,059US $80,734 |
| Median home value | $305,800This ZIP$305,800Iowa$208,000US $332,700 |
| Median gross rent | $855This ZIP$855Iowa$972US $1,413 |
| Bachelor's degree or higher | 30.5%This ZIP30.5% |
| Mean commute | 32.8 minThis ZIP32.8 min |
| Population density | 31.8 / sq miThis ZIP31.8 / sq mi |
Business and tax activity
| Business establishments | 44This ZIP44 |
|---|---|
| Employees | 134This ZIP134 |
| Annual payroll | $5,365,000This ZIP$5,365,000 |
| Tax returns filed | 1,150This ZIP1,150 |
| Total adjusted gross income | $104,925,000This ZIP$104,925,000 |
Land area
| Land area | 75.29 sq miThis ZIP75.29 sq mi |
|---|---|
| Water area | 0.24 sq miThis ZIP0.24 sq mi |
Counties 50240 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Madison County | 51.4% |
| Warren County | 48.6% |
Other place names in 50240
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 50240
| ZIP | City | Distance |
|---|---|---|
50241 | Saint Marys, IA | 3.2 mi |
50033 | Bevington, IA | 4.4 mi |
50218 | Patterson, IA | 5.6 mi |
50229 | Prole, IA | 5.7 mi |
50160 | Martensdale, IA | 6.0 mi |
50210 | New Virginia, IA | 8.6 mi |
50257 | Truro, IA | 8.6 mi |
50222 | Peru, IA | 10.3 mi |
50125 | Indianola, IA | 11.1 mi |
50211 | Norwalk, IA | 11.8 mi |
Find every ZIP code within 10 miles of 50240 →
Questions about this ZIP code
Where is ZIP code 50240?
50240 is in Saint Charles, Iowa, in Madison County, part of the Des Moines-West Des Moines, IA metropolitan area. Its published point location is 41.2971, -93.7930.
What county is 50240 in?
50240 spans 2 counties: Madison 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 50240?
Saint Charles uses area code 641, from NANPA's telephone records.
What time zone is 50240 in?
50240 uses America/Chicago.
How many people live in 50240?
About 2,393 people live in ZIP code 50240, in 861 households, at 31.8 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 50240?
$107,563 a year, against $75,059 across Iowa.
What ZIP codes are near 50240?
The closest are 50241 (3.2 mi), 50033 (4.4 mi), 50218 (5.6 mi), 50229 (5.7 mi) and 50160 (6 mi).
Is 50240 a PO Box ZIP code?
50240 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “50240 ZIP Code — Saint Charles, Iowa (Madison County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/50240
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/50240.json Underlying data is public domain or openly licensed — sources, vintages and licences.