50128
ZIP 50128 is Jamaica, Iowa, mostly in Guthrie County; area code 641; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Guthrie +2 more
- Metro area
- Des Moines-West Des Moines, IA
- Population
- 330
- Coordinates
- 41.8556, -94.3002
Weather right now
Asking the National Weather Service…
Where 50128 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 50128 into a pocket calculator and turn it upside down: BZIOS — not quite a word, sorry.
- ➕ As a number, 50,128 = 2 × 2 × 2 × 2 × 13 × 241. Its digits add up to 16, a total 1,922 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100001111010000 - 🏠 Its numerical neighbours: 50127 (Ira, IA, 56 mi away) and 50129 (Jefferson, IA, 12 mi away).
- 🔄 Backwards, 50128 becomes 82105, which is not a ZIP code at all.
- 👥 65 other ZIP codes are made of exactly the same digits (01258, 01825, 01852, 02185, 02815, 05821, …). The farthest-flung twin is 02185 in Braintree, MA, 1,188 miles away.
- 🧭 Farther north than 74% of all ZIP codes, and farther west than 67%.
- 🎯264 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 50128 and you would come out at 41.86°S, 85.70°E — 907 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 13m of daylight. Shortest: 9h 08m.
- 📏 At 28.2 square miles of land, 50128 is bigger than 44% of ZIP codes — room for about 21 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 330This ZIP330 |
|---|---|
| Households | 160This ZIP160 |
| Housing units | 167This ZIP167 |
| Median age | 55.1This ZIP55.1Iowa38.6US 38.9 |
| Median household income | $61,250This ZIP$61,250Iowa$75,059US $80,734 |
| Median home value | $122,900This ZIP$122,900Iowa$208,000US $332,700 |
| Median gross rent | $498This ZIP$498Iowa$972US $1,413 |
| Bachelor's degree or higher | 23.6%This ZIP23.6% |
| Mean commute | 36.4 minThis ZIP36.4 min |
| Population density | 11.7 / sq miThis ZIP11.7 / sq mi |
Business and tax activity
| Tax returns filed | 140This ZIP140 |
|---|---|
| Total adjusted gross income | $12,516,000This ZIP$12,516,000 |
Land area
| Land area | 28.24 sq miThis ZIP28.24 sq mi |
|---|---|
| Water area | 0.08 sq miThis ZIP0.08 sq mi |
Counties 50128 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Guthrie County | 48.6% |
| Greene County | 38.9% |
| Dallas County | 12.5% |
Other place names in 50128
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 50128
| ZIP | City | Distance |
|---|---|---|
50066 | Dawson, IA | 5.3 mi |
50277 | Yale, IA | 5.7 mi |
50235 | Rippey, IA | 6.5 mi |
50026 | Bagley, IA | 7.7 mi |
50220 | Perry, IA | 9.3 mi |
50216 | Panora, IA | 11.3 mi |
50129 | Jefferson, IA | 11.6 mi |
50146 | Linden, IA | 12.4 mi |
50107 | Grand Junction, IA | 13.2 mi |
50029 | Bayard, IA | 13.3 mi |
Find every ZIP code within 10 miles of 50128 →
Questions about this ZIP code
Where is ZIP code 50128?
50128 is in Jamaica, Iowa, in Guthrie County, part of the Des Moines-West Des Moines, IA metropolitan area. Its published point location is 41.8556, -94.3002.
What county is 50128 in?
50128 spans 3 counties: Guthrie County, Greene County and Dallas County. Most of it falls in Guthrie 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 50128?
Jamaica uses area code 641, from NANPA's telephone records.
What time zone is 50128 in?
50128 uses America/Chicago.
How many people live in 50128?
About 330 people live in ZIP code 50128, in 160 households, at 11.7 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 50128?
$61,250 a year, against $75,059 across Iowa.
What ZIP codes are near 50128?
The closest are 50066 (5.3 mi), 50277 (5.7 mi), 50235 (6.5 mi), 50026 (7.7 mi) and 50220 (9.3 mi).
Is 50128 a PO Box ZIP code?
50128 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “50128 ZIP Code — Jamaica, Iowa (Guthrie County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/50128
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/50128.json Underlying data is public domain or openly licensed — sources, vintages and licences.