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zipcodes.pro — ZIP/51576

51576

ZIP 51576 is Underwood, Iowa, in Pottawattamie County; area code 712; Central time.

Type
Standard
Time zone
America/Chicago
County
Pottawattamie
Metro area
Omaha, NE-IA
Population
1,769
Coordinates
41.3829, -95.7149
☼ Live from 51576 — Underwood, IA

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Local time: —

Where 51576 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 51576
  • 🔢 Type 51576 into a pocket calculator and turn it upside down: gLSIS — not quite a word, sorry.
  • ➕ As a number, 51,576 = 2 × 2 × 2 × 3 × 7 × 307. Its digits add up to 24, a total 2,425 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100100101111000
  • 🏠 Its numerical neighbours: 51575 (Treynor, IA, 11 mi away) and 51577 (Walnut, IA, 27 mi away).
  • 🔄 Backwards, 51576 becomes 67515 — and that is a real ZIP code: Arnold, KS, 300 miles away.
  • 👥 24 other ZIP codes are made of exactly the same digits (15675, 15756, 15765, 17565, 55716, 56157, …). The farthest-flung twin is 17565 in Pequea, PA, 1,019 miles away.
  • 🧭 Farther north than 70% of all ZIP codes, and farther west than 70%.
  • 🎯185 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 51576 and you would come out at 41.38°S, 84.29°E — 875 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 10m of daylight. Shortest: 9h 11m.
  • 📏 At 46.3 square miles of land, 51576 is bigger than 57% of ZIP codes — room for about 35 Central Parks.
🌙 The sky over 51576 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,769This ZIP1,769
Households650This ZIP650
Housing units706This ZIP706
Median age40.1This ZIP40.1Iowa38.6US 38.9
Median household income$110,476This ZIP$110,476Iowa$75,059US $80,734
Median home value$305,400This ZIP$305,400Iowa$208,000US $332,700
Median gross rent$1,172This ZIP$1,172Iowa$972US $1,413
Bachelor's degree or higher31.1%This ZIP31.1%
Mean commute25.9 minThis ZIP25.9 min
Population density38.2 / sq miThis ZIP38.2 / sq mi

Business and tax activity

Business establishments39This ZIP39
Employees423This ZIP423
Annual payroll$22,903,000This ZIP$22,903,000
Tax returns filed1,020This ZIP1,020
Total adjusted gross income$102,117,000This ZIP$102,117,000

Land area

Land area46.34 sq miThis ZIP46.34 sq mi
Water area0.21 sq miThis ZIP0.21 sq mi

Other place names in 51576

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

ZIP codes near 51576

ZIPCityDistance
51548 Mc Clelland, IA 6.1 mi
51559 Neola, IA 6.2 mi
51542 Honey Creek, IA 7.2 mi
51526 Crescent, IA 8.2 mi
51553 Minden, IA 9.0 mi
68110 Omaha, NE 10.8 mi
51502 Council Bluffs, IA 11.3 mi
51575 Treynor, IA 11.4 mi
51503 Council Bluffs, IA 11.6 mi
51510 Carter Lake, IA 12.3 mi

Find every ZIP code within 10 miles of 51576 →

Questions about this ZIP code

Where is ZIP code 51576?

51576 is in Underwood, Iowa, in Pottawattamie County, part of the Omaha, NE-IA metropolitan area. Its published point location is 41.3829, -95.7149.

What county is 51576 in?

51576 lies in Pottawattamie County.

What area code is 51576?

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

What time zone is 51576 in?

51576 uses America/Chicago.

How many people live in 51576?

About 1,769 people live in ZIP code 51576, in 650 households, at 38.2 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 51576?

$110,476 a year, against $75,059 across Iowa.

What ZIP codes are near 51576?

The closest are 51548 (6.1 mi), 51559 (6.2 mi), 51542 (7.2 mi), 51526 (8.2 mi) and 51553 (9 mi).

Is 51576 a PO Box ZIP code?

51576 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “51576 ZIP Code — Underwood, Iowa (Pottawattamie County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51576

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