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Where 50129 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 50129 into a pocket calculator and turn it upside down: GZIOS — not quite a word, sorry.
- ➕ 50129 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 17, a total 2,133 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100001111010001 - 🏠 Its numerical neighbours: 50128 (Jamaica, IA, 12 mi away) and 50130 (Jewell, IA, 41 mi away).
- 🔄 Backwards, 50129 becomes 92105 — and that is a real ZIP code: San Diego, CA, 1,396 miles away.
- 👥 51 other ZIP codes are made of exactly the same digits (01259, 01529, 01952, 02915, 09215, 09251, …). The farthest-flung twin is 09251 in APO AE, a military post office, 4,553 miles away.
- 🧭 Farther north than 75% of all ZIP codes, and farther west than 67%.
- 🎯266 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 50129 and you would come out at 42.01°S, 85.62°E — 897 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 15m of daylight. Shortest: 9h 07m.
- 📏 At 165.4 square miles of land, 50129 is bigger than 88% of ZIP codes — room for about 126 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 5,014This ZIP5,014 |
|---|---|
| Households | 2,369This ZIP2,369 |
| Housing units | 2,571This ZIP2,571 |
| Median age | 49.4This ZIP49.4Iowa38.6US 38.9 |
| Median household income | $60,671This ZIP$60,671Iowa$75,059US $80,734 |
| Median home value | $166,100This ZIP$166,100Iowa$208,000US $332,700 |
| Median gross rent | $760This ZIP$760Iowa$972US $1,413 |
| Bachelor's degree or higher | 22.6%This ZIP22.6% |
| Mean commute | 21.6 minThis ZIP21.6 min |
| Population density | 30.3 / sq miThis ZIP30.3 / sq mi |
Business and tax activity
| Business establishments | 176This ZIP176 |
|---|---|
| Employees | 1,816This ZIP1,816 |
| Annual payroll | $76,407,000This ZIP$76,407,000 |
| Tax returns filed | 2,400This ZIP2,400 |
| Total adjusted gross income | $193,786,000This ZIP$193,786,000 |
Land area
| Land area | 165.35 sq miThis ZIP165.35 sq mi |
|---|---|
| Water area | 0.58 sq miThis ZIP0.58 sq mi |
Counties 50129 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Greene County | 99.8% |
| Guthrie County | 0.2% |
Other place names in 50129
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 50129
| ZIP | City | Distance |
|---|---|---|
50059 | Cooper, IA | 1.9 mi |
50107 | Grand Junction, IA | 8.3 mi |
51462 | Scranton, IA | 9.2 mi |
50235 | Rippey, IA | 9.6 mi |
50064 | Dana, IA | 10.1 mi |
50026 | Bagley, IA | 11.3 mi |
50128 | Jamaica, IA | 11.6 mi |
50050 | Churdan, IA | 12.0 mi |
50031 | Beaver, IA | 12.3 mi |
50217 | Paton, IA | 13.4 mi |
Find every ZIP code within 10 miles of 50129 →
Questions about this ZIP code
Where is ZIP code 50129?
50129 is in Jefferson, Iowa, in Greene County. Its published point location is 42.0133, -94.3767.
What county is 50129 in?
50129 spans 2 counties: Greene County and Guthrie County. Most of it falls in Greene 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 50129?
Jefferson uses area code 515, from NANPA's telephone records.
What time zone is 50129 in?
50129 uses America/Chicago.
How many people live in 50129?
About 5,014 people live in ZIP code 50129, in 2,369 households, at 30.3 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 50129?
$60,671 a year, against $75,059 across Iowa.
What ZIP codes are near 50129?
The closest are 50059 (1.9 mi), 50107 (8.3 mi), 51462 (9.2 mi), 50235 (9.6 mi) and 50064 (10.1 mi).
Is 50129 a PO Box ZIP code?
50129 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “50129 ZIP Code — Jefferson, Iowa (Greene County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/50129
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/50129.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.