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zipcodes.pro — ZIP/50621

50621

ZIP 50621 is Conrad, Iowa, mostly in Grundy County; area code 641; Central time.

Type
Standard
Time zone
America/Chicago
County
Grundy +1 more
Population
1,601
Coordinates
42.2474, -92.9190
☼ Live from 50621 — Conrad, IA

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Local time: —

Where 50621 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.

★ Weird and wonderful facts about 50621
  • 🔢 Type 50621 into a pocket calculator and turn it upside down: IZgOS — not quite a word, sorry.
  • ➕ As a number, 50,621 = 223 × 227. Its digits add up to 14, a total 1,416 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100010110111101
  • 🏠 Its numerical neighbours: 50620 (Colwell, IA, 65 mi away) and 50622 (Denver, IA, 42 mi away).
  • 🔄 Backwards, 50621 becomes 12605, which is not a ZIP code at all.
  • 👥 67 other ZIP codes are made of exactly the same digits (01256, 01526, 01562, 02156, 02561, 02651, …). The farthest-flung twin is 02651 in North Eastham, MA, 1,174 miles away.
  • 🧭 Farther north than 77% of all ZIP codes, and farther west than 63%.
  • 🎯339 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 50621 and you would come out at 42.25°S, 87.08°E — 946 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 16m of daylight. Shortest: 9h 05m.
  • 📏 At 62.9 square miles of land, 50621 is bigger than 66% of ZIP codes — room for about 48 Central Parks.
🌙 The sky over 50621 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,601This ZIP1,601
Households656This ZIP656
Housing units743This ZIP743
Median age47.8This ZIP47.8Iowa38.6US 38.9
Median household income$88,077This ZIP$88,077Iowa$75,059US $80,734
Median home value$214,700This ZIP$214,700Iowa$208,000US $332,700
Median gross rent$840This ZIP$840Iowa$972US $1,413
Bachelor's degree or higher29.6%This ZIP29.6%
Mean commute19.6 minThis ZIP19.6 min
Population density25.5 / sq miThis ZIP25.5 / sq mi

Business and tax activity

Business establishments48This ZIP48
Employees609This ZIP609
Annual payroll$34,016,000This ZIP$34,016,000
Tax returns filed720This ZIP720
Total adjusted gross income$62,533,000This ZIP$62,533,000

Land area

Land area62.89 sq miThis ZIP62.89 sq mi
Water area0.00 sq mi

Counties 50621 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Grundy County 83.8%
Marshall County 16.2%

Other place names in 50621

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 50621

ZIPCityDistance
50269 Whitten, IA 4.8 mi
50609 Beaman, IA 5.8 mi
50148 Liscomb, IA 6.0 mi
50258 Union, IA 8.0 mi
50638 Grundy Center, IA 9.9 mi
50005 Albion, IA 9.9 mi
50627 Eldora, IA 11.4 mi
50652 Lincoln, IA 11.7 mi
50635 Gladbrook, IA 11.8 mi
50680 Wellsburg, IA 13.6 mi

Find every ZIP code within 10 miles of 50621 →

Questions about this ZIP code

Where is ZIP code 50621?

50621 is in Conrad, Iowa, in Grundy County, part of the Waterloo-Cedar Falls, IA metropolitan area. Its published point location is 42.2474, -92.9190.

What county is 50621 in?

50621 spans 2 counties: Grundy County and Marshall County. Most of it falls in Grundy 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 50621?

Conrad uses area code 641, from NANPA's telephone records.

What time zone is 50621 in?

50621 uses America/Chicago.

How many people live in 50621?

About 1,601 people live in ZIP code 50621, in 656 households, at 25.5 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 50621?

$88,077 a year, against $75,059 across Iowa.

What ZIP codes are near 50621?

The closest are 50269 (4.8 mi), 50609 (5.8 mi), 50148 (6 mi), 50258 (8 mi) and 50638 (9.9 mi).

Is 50621 a PO Box ZIP code?

50621 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “50621 ZIP Code — Conrad, Iowa (Grundy County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/50621

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