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ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/51551

51551

ZIP 51551 is Malvern, Iowa, in Mills County; area code 712; Central time.

Type
Standard
Time zone
America/Chicago
County
Mills
Metro area
Omaha, NE-IA
Population
1,842
Coordinates
40.9908, -95.5875
☼ Live from 51551 — Malvern, IA

Weather right now

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NEXRAD radar
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Local time: —

Where 51551 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 51551
  • 🔢 Type 51551 into a pocket calculator and turn it upside down: ISSIS — not quite a word, sorry.
  • ➕ 51551 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: 1100100101011111
  • 🏠 Its numerical neighbours: 51550 (Magnolia, IA, 51 mi away) and 51552 (Marne, IA, 42 mi away).
  • 🔄 Backwards, 51551 becomes 15515, which is not a ZIP code at all.
  • 👥 3 other ZIP codes are made of exactly the same digits (11555, 15551, 55115). The farthest-flung twin is 11555 in Uniondale, NY, 1,147 miles away.
  • 🧭 Farther north than 67% of all ZIP codes, and farther west than 70%.
  • 🎯177 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 51551 and you would come out at 40.99°S, 84.41°E — 898 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 08m of daylight. Shortest: 9h 13m.
  • 📏 At 81.9 square miles of land, 51551 is bigger than 73% of ZIP codes — room for about 62 Central Parks.
🌙 The sky over 51551 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,842This ZIP1,842
Households633This ZIP633
Housing units734This ZIP734
Median age40.8This ZIP40.8Iowa38.6US 38.9
Median household income$85,469This ZIP$85,469Iowa$75,059US $80,734
Median home value$212,400This ZIP$212,400Iowa$208,000US $332,700
Median gross rent$870This ZIP$870Iowa$972US $1,413
Bachelor's degree or higher25.1%This ZIP25.1%
Mean commute29.0 minThis ZIP29.0 min
Population density22.5 / sq miThis ZIP22.5 / sq mi

Business and tax activity

Business establishments40This ZIP40
Employees254This ZIP254
Annual payroll$11,943,000This ZIP$11,943,000
Tax returns filed860This ZIP860
Total adjusted gross income$70,682,000This ZIP$70,682,000

Land area

Land area81.92 sq miThis ZIP81.92 sq mi
Water area0.44 sq miThis ZIP0.44 sq mi

Other place names in 51551

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

ZIP codes near 51551

ZIPCityDistance
51540 Hastings, IA 5.2 mi
51534 Glenwood, IA 7.6 mi
51653 Tabor, IA 9.2 mi
51649 Randolph, IA 10.2 mi
51571 Silver City, IA 10.6 mi
51645 Imogene, IA 11.4 mi
51533 Emerson, IA 11.4 mi
51561 Pacific Junction, IA 11.6 mi
51554 Mineola, IA 11.7 mi
51541 Henderson, IA 13.6 mi

Find every ZIP code within 10 miles of 51551 →

Questions about this ZIP code

Where is ZIP code 51551?

51551 is in Malvern, Iowa, in Mills County, part of the Omaha, NE-IA metropolitan area. Its published point location is 40.9908, -95.5875.

What county is 51551 in?

51551 lies in Mills County.

What area code is 51551?

Malvern uses area code 712, from NANPA's telephone records.

What time zone is 51551 in?

51551 uses America/Chicago.

How many people live in 51551?

About 1,842 people live in ZIP code 51551, in 633 households, at 22.5 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 51551?

$85,469 a year, against $75,059 across Iowa.

What ZIP codes are near 51551?

The closest are 51540 (5.2 mi), 51534 (7.6 mi), 51653 (9.2 mi), 51649 (10.2 mi) and 51571 (10.6 mi).

Is 51551 a PO Box ZIP code?

51551 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “51551 ZIP Code — Malvern, Iowa (Mills County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51551

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