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Where 50577 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 50577 into a pocket calculator and turn it upside down: LLSOS — not quite a word, sorry.
- ➕ As a number, 50,577 = 3 × 23 × 733. Its digits add up to 24, a total 2,425 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1100010110010001 - 🏠 Its numerical neighbours: 50576 (Rembrandt, IA, 61 mi away) and 50578 (Ringsted, IA, 42 mi away).
- 🔄 Backwards, 50577 becomes 77505 — and that is a real ZIP code: Pasadena, TX, 915 miles away.
- 👥 20 other ZIP codes are made of exactly the same digits (05757, 05775, 07755, 55077, 55707, 57057, …). The farthest-flung twin is 05757 in Middletown Springs, VT, 1,049 miles away.
- 🧭 Farther north than 82% of all ZIP codes, and farther west than 66%.
- 🎯317 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 50577 and you would come out at 42.86°S, 86.02°E — 877 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 21m of daylight. Shortest: 9h 01m.
- 📏 At 38.9 square miles of land, 50577 is bigger than 53% of ZIP codes — room for about 30 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 341This ZIP341 |
|---|---|
| Households | 202This ZIP202 |
| Housing units | 249This ZIP249 |
| Median age | 53.5This ZIP53.5Iowa38.6US 38.9 |
| Median household income | $57,500This ZIP$57,500Iowa$75,059US $80,734 |
| Median home value | $107,400This ZIP$107,400Iowa$208,000US $332,700 |
| Median gross rent | $746This ZIP$746Iowa$972US $1,413 |
| Bachelor's degree or higher | 9.6%This ZIP9.6% |
| Mean commute | 24.0 minThis ZIP24.0 min |
| Population density | 8.8 / sq miThis ZIP8.8 / sq mi |
Business and tax activity
| Business establishments | 14This ZIP14 |
|---|---|
| Employees | 88This ZIP88 |
| Annual payroll | $5,334,000This ZIP$5,334,000 |
| Tax returns filed | 180This ZIP180 |
| Total adjusted gross income | $12,180,000This ZIP$12,180,000 |
Land area
| Land area | 38.94 sq miThis ZIP38.94 sq mi |
|---|---|
| Water area | 0.00 sq mi |
Counties 50577 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Humboldt County | 57.2% |
| Wright County | 42.8% |
Other place names in 50577
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 50577
| ZIP | City | Distance |
|---|---|---|
50542 | Goldfield, IA | 5.5 mi |
50545 | Hardy, IA | 6.6 mi |
50430 | Corwith, IA | 8.3 mi |
50560 | Lu Verne, IA | 9.3 mi |
50558 | Livermore, IA | 9.4 mi |
50447 | Kanawha, IA | 10.5 mi |
50591 | Thor, IA | 13.1 mi |
50525 | Clarion, IA | 14.4 mi |
50533 | Eagle Grove, IA | 14.6 mi |
50529 | Dakota City, IA | 14.6 mi |
Find every ZIP code within 10 miles of 50577 →
Questions about this ZIP code
Where is ZIP code 50577?
50577 is in Renwick, Iowa, in Humboldt County. Its published point location is 42.8577, -93.9791.
What county is 50577 in?
50577 spans 2 counties: Humboldt County and Wright County. Most of it falls in Humboldt 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 50577?
Renwick uses area code 515, from NANPA's telephone records.
What time zone is 50577 in?
50577 uses America/Chicago.
How many people live in 50577?
About 341 people live in ZIP code 50577, in 202 households, at 8.8 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 50577?
$57,500 a year, against $75,059 across Iowa.
What ZIP codes are near 50577?
The closest are 50542 (5.5 mi), 50545 (6.6 mi), 50430 (8.3 mi), 50560 (9.3 mi) and 50558 (9.4 mi).
Is 50577 a PO Box ZIP code?
50577 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “50577 ZIP Code — Renwick, Iowa (Humboldt County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/50577
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/50577.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.