50131
ZIP 50131 is Johnston, Iowa, in Polk County; area code 515; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Polk
- Metro area
- Des Moines-West Des Moines, IA
- Population
- 24,583
- Coordinates
- 41.6968, -93.7208
Weather right now
Asking the National Weather Service…
Where 50131 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 50131 into a pocket calculator and turn it upside down: IEIOS — not quite a word, sorry.
- ➕ 50131 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 10, a total 513 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100001111010011 - 🏠 Its numerical neighbours: 50130 (Jewell, IA, 42 mi away) and 50132 (Kamrar, IA, 48 mi away).
- 🔄 Backwards, 50131 becomes 13105, which is not a ZIP code at all.
- 👥 26 other ZIP codes are made of exactly the same digits (01351, 01531, 10153, 11053, 11530, 13051, …). The farthest-flung twin is 01531 in New Braintree, MA, 1,106 miles away.
- 🧭 Farther north than 73% of all ZIP codes, and farther west than 65%.
- 🎯285 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 50131 and you would come out at 41.70°S, 86.28°E — 937 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 12m of daylight. Shortest: 9h 09m.
- 📏 At 23.8 square miles of land, 50131 is bigger than 41% of ZIP codes — room for about 18 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 24,583This ZIP24,583 |
|---|---|
| Households | 9,361This ZIP9,361 |
| Housing units | 9,822This ZIP9,822 |
| Median age | 37.5This ZIP37.5Iowa38.6US 38.9 |
| Median household income | $106,551This ZIP$106,551Iowa$75,059US $80,734 |
| Median home value | $369,400This ZIP$369,400Iowa$208,000US $332,700 |
| Median gross rent | $1,338This ZIP$1,338Iowa$972US $1,413 |
| Bachelor's degree or higher | 57.7%This ZIP57.7% |
| Mean commute | 19.8 minThis ZIP19.8 min |
| Population density | 1,033.2 / sq miThis ZIP1,033.2 / sq mi |
Business and tax activity
| Business establishments | 671This ZIP671 |
|---|---|
| Employees | 15,205This ZIP15,205 |
| Annual payroll | $1,323,181,000This ZIP$1,323,181,000 |
| Tax returns filed | 11,910This ZIP11,910 |
| Total adjusted gross income | $1,552,554,000This ZIP$1,552,554,000 |
Land area
| Land area | 23.79 sq miThis ZIP23.79 sq mi |
|---|---|
| Water area | 4.12 sq miThis ZIP4.12 sq mi |
Other place names in 50131
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 50131
| ZIP | City | Distance |
|---|---|---|
50111 | Grimes, IA | 4.2 mi |
50322 | Urbandale, IA | 4.4 mi |
50398 | Urbandale, IA | 4.9 mi |
50023 | Ankeny, IA | 5.1 mi |
50310 | Des Moines, IA | 5.4 mi |
50313 | Des Moines, IA | 5.7 mi |
50324 | Windsor Heights, IA | 6.4 mi |
50109 | Granger, IA | 6.6 mi |
50323 | Urbandale, IA | 6.6 mi |
50226 | Polk City, IA | 6.9 mi |
Find every ZIP code within 10 miles of 50131 →
Questions about this ZIP code
Where is ZIP code 50131?
50131 is in Johnston, Iowa, in Polk County, part of the Des Moines-West Des Moines, IA metropolitan area. Its published point location is 41.6968, -93.7208.
What county is 50131 in?
50131 lies in Polk County.
What area code is 50131?
Johnston uses area code 515, from NANPA's telephone records.
What time zone is 50131 in?
50131 uses America/Chicago.
How many people live in 50131?
About 24,583 people live in ZIP code 50131, in 9,361 households, at 1,033.2 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 50131?
$106,551 a year, against $75,059 across Iowa.
What ZIP codes are near 50131?
The closest are 50111 (4.2 mi), 50322 (4.4 mi), 50398 (4.9 mi), 50023 (5.1 mi) and 50310 (5.4 mi).
Is 50131 a PO Box ZIP code?
50131 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “50131 ZIP Code — Johnston, Iowa (Polk County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/50131
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/50131.json Underlying data is public domain or openly licensed — sources, vintages and licences.