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zipcodes.pro — ZIP/51545

51545

ZIP 51545 is Little Sioux, Iowa, mostly in Harrison County; area code 712; Central time.

Type
Standard
Time zone
America/Chicago
County
Harrison +1 more
Metro area
Omaha, NE-IA
Population
267
Coordinates
41.8510, -96.0146
☼ Live from 51545 — Little Sioux, IA

Weather right now

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Local time: —

Where 51545 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 51545
  • 🔢 Type 51545 into a pocket calculator and turn it upside down: ShSIS — not quite a word, sorry.
  • ➕ As a number, 51,545 = 5 × 13 × 13 × 61. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100100101011001
  • 🏠 Its numerical neighbours: 51544 (Lewis, IA, 60 mi away) and 51546 (Logan, IA, 20 mi away).
  • 🔄 Backwards, 51545 becomes 54515 — and that is a real ZIP code: Catawba, WI, 374 miles away.
  • 👥 12 other ZIP codes are made of exactly the same digits (14555, 15455, 15545, 15554, 41555, 45155, …). The farthest-flung twin is 14555 in Sodus Point, NY, 972 miles away.
  • 🧭 Farther north than 74% of all ZIP codes, and farther west than 71%.
  • 🎯194 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 51545 and you would come out at 41.85°S, 83.99°E — 841 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 13m of daylight. Shortest: 9h 08m.
  • 📏 At 46.5 square miles of land, 51545 is bigger than 58% of ZIP codes — room for about 35 Central Parks.
🌙 The sky over 51545 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population267This ZIP267
Households131This ZIP131
Housing units173This ZIP173
Median age58.7This ZIP58.7Iowa38.6US 38.9
Median household income$70,313This ZIP$70,313Iowa$75,059US $80,734
Median home value$80,000This ZIP$80,000Iowa$208,000US $332,700
Median gross rent$508This ZIP$508Iowa$972US $1,413
Bachelor's degree or higher5.8%This ZIP5.8%
Mean commute41.1 minThis ZIP41.1 min
Population density5.7 / sq miThis ZIP5.7 / sq mi

Business and tax activity

Business establishments4This ZIP4
Employees7This ZIP7
Annual payroll$133,000This ZIP$133,000
Tax returns filed110This ZIP110
Total adjusted gross income$7,478,000This ZIP$7,478,000

Land area

Land area46.47 sq miThis ZIP46.47 sq mi
Water area0.82 sq miThis ZIP0.82 sq mi

Counties 51545 spans

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

CountyShare of this ZIP
Harrison County 72.2%
Monona County 27.8%

Other place names in 51545

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

ZIP codes near 51545

ZIPCityDistance
51523 Blencoe, IA 5.2 mi
51564 Pisgah, IA 5.5 mi
51557 Mondamin, IA 8.1 mi
51558 Moorhead, IA 8.2 mi
68061 Tekamah, NE 11.0 mi
51040 Onawa, IA 12.8 mi
51550 Magnolia, IA 13.1 mi
51572 Soldier, IA 14.1 mi
51556 Modale, IA 14.4 mi
68020 Decatur, NE 15.3 mi

Find every ZIP code within 10 miles of 51545 →

Questions about this ZIP code

Where is ZIP code 51545?

51545 is in Little Sioux, Iowa, in Harrison County, part of the Omaha, NE-IA metropolitan area. Its published point location is 41.8510, -96.0146.

What county is 51545 in?

51545 spans 2 counties: Harrison County and Monona County. Most of it falls in Harrison 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 51545?

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

What time zone is 51545 in?

51545 uses America/Chicago.

How many people live in 51545?

About 267 people live in ZIP code 51545, in 131 households, at 5.7 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 51545?

$70,313 a year, against $75,059 across Iowa.

What ZIP codes are near 51545?

The closest are 51523 (5.2 mi), 51564 (5.5 mi), 51557 (8.1 mi), 51558 (8.2 mi) and 68061 (11 mi).

Is 51545 a PO Box ZIP code?

51545 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “51545 ZIP Code — Little Sioux, Iowa (Harrison County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51545

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curl https://zipcodes.pro/zip/51545.json

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