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zipcodes.pro — ZIP/51440

51440

ZIP 51440 is Dedham, Iowa, in Carroll County; area code 712; Central time.

Type
Standard
Time zone
America/Chicago
County
Carroll
Metro area
Carroll, IA
Population
334
Coordinates
41.9117, -94.8138
☼ Live from 51440 — Dedham, IA

Weather right now

Asking the National Weather Service…

NEXRAD radar
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Local time: —

Where 51440 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 51440
  • 🔢 Type 51440 into a pocket calculator and turn it upside down: OhhIS — not quite a word, sorry.
  • ➕ As a number, 51,440 = 2 × 2 × 2 × 2 × 5 × 643. Its digits add up to 14, a total 1,416 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100100011110000
  • 🏠 Its numerical neighbours: 51439 (Charter Oak, IA, 42 mi away) and 51441 (Deloit, IA, 29 mi away).
  • 🔄 Backwards, 51440 becomes 04415 — and that is a real ZIP code: Brownville Junction, ME, 1,304 miles away.
  • 👥 31 other ZIP codes are made of exactly the same digits (04415, 04451, 04541, 05441, 10454, 14054, …). The farthest-flung twin is 04451 in Kingman, ME, 1,345 miles away.
  • 🧭 Farther north than 75% of all ZIP codes, and farther west than 68%.
  • 🎯244 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 51440 and you would come out at 41.91°S, 85.19°E — 885 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 14m of daylight. Shortest: 9h 07m.
  • 📏 At 26.4 square miles of land, 51440 is bigger than 43% of ZIP codes — room for about 20 Central Parks.
🌙 The sky over 51440 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population334This ZIP334
Households115This ZIP115
Housing units115This ZIP115
Median age37.1This ZIP37.1Iowa38.6US 38.9
Median household income$87,750This ZIP$87,750Iowa$75,059US $80,734
Median home value$223,200This ZIP$223,200Iowa$208,000US $332,700
Bachelor's degree or higher35.0%This ZIP35.0%
Mean commute22.1 minThis ZIP22.1 min
Population density12.6 / sq miThis ZIP12.6 / sq mi

Business and tax activity

Business establishments13This ZIP13
Employees37This ZIP37
Annual payroll$1,279,000This ZIP$1,279,000
Tax returns filed170This ZIP170
Total adjusted gross income$12,595,000This ZIP$12,595,000

Land area

Land area26.41 sq miThis ZIP26.41 sq mi
Water area0.00 sq mi

Other place names in 51440

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

ZIP codes near 51440

ZIPCityDistance
51463 Templeton, IA 5.1 mi
50058 Coon Rapids, IA 7.4 mi
50110 Gray, IA 10.0 mi
51444 Halbur, IA 10.7 mi
51401 Carroll, IA 11.0 mi
50025 Audubon, IA 12.1 mi
51443 Glidden, IA 12.5 mi
51455 Manning, IA 12.5 mi
51459 Ralston, IA 12.9 mi
50029 Bayard, IA 14.4 mi

Find every ZIP code within 10 miles of 51440 →

Questions about this ZIP code

Where is ZIP code 51440?

51440 is in Dedham, Iowa, in Carroll County, part of the Carroll, IA micropolitan area. Its published point location is 41.9117, -94.8138.

What county is 51440 in?

51440 lies in Carroll County.

What area code is 51440?

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

What time zone is 51440 in?

51440 uses America/Chicago.

How many people live in 51440?

About 334 people live in ZIP code 51440, in 115 households, at 12.6 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 51440?

$87,750 a year, against $75,059 across Iowa.

What ZIP codes are near 51440?

The closest are 51463 (5.1 mi), 50058 (7.4 mi), 50110 (10 mi), 51444 (10.7 mi) and 51401 (11 mi).

Is 51440 a PO Box ZIP code?

51440 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “51440 ZIP Code — Dedham, Iowa (Carroll County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51440

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