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zipcodes.pro — ZIP/51004

51004

ZIP 51004 is Anthon, Iowa, in Woodbury County; area code 712; Central time.

Type
Standard
Time zone
America/Chicago
County
Woodbury
Population
858
Coordinates
42.3801, -95.9182
☼ Live from 51004 — Anthon, IA

Weather right now

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NEXRAD radar
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Local time: —

Where 51004 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 51004
  • 🔢 Type 51004 into a pocket calculator and turn it upside down: hOOIS — not quite a word, sorry.
  • ➕ As a number, 51,004 = 2 × 2 × 41 × 311. Its digits add up to 10, a total 513 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100011100111100
  • 🏠 Its numerical neighbours: 51003 (Alton, IA, 42 mi away) and 51005 (Aurelia, IA, 35 mi away).
  • 🔄 Backwards, 51004 becomes 40015, which is not a ZIP code at all.
  • 👥 27 other ZIP codes are made of exactly the same digits (01054, 01450, 01504, 01540, 04015, 04051, …). The farthest-flung twin is 04105 in Falmouth, ME, 1,293 miles away.
  • 🧭 Farther north than 78% of all ZIP codes, and farther west than 71%.
  • 🎯224 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 51004 and you would come out at 42.38°S, 84.08°E — 821 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 17m of daylight. Shortest: 9h 04m.
  • 📏 At 84.2 square miles of land, 51004 is bigger than 74% of ZIP codes — room for about 64 Central Parks.
🌙 The sky over 51004 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population858This ZIP858
Households423This ZIP423
Housing units493This ZIP493
Median age50.4This ZIP50.4Iowa38.6US 38.9
Median household income$43,882This ZIP$43,882Iowa$75,059US $80,734
Median home value$114,600This ZIP$114,600Iowa$208,000US $332,700
Median gross rent$1,063This ZIP$1,063Iowa$972US $1,413
Bachelor's degree or higher22.5%This ZIP22.5%
Mean commute26.5 minThis ZIP26.5 min
Population density10.2 / sq miThis ZIP10.2 / sq mi

Business and tax activity

Business establishments22This ZIP22
Employees88This ZIP88
Annual payroll$2,348,000This ZIP$2,348,000
Tax returns filed460This ZIP460
Total adjusted gross income$36,042,000This ZIP$36,042,000

Land area

Land area84.20 sq miThis ZIP84.20 sq mi
Water area0.32 sq miThis ZIP0.32 sq mi

Other place names in 51004

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

ZIP codes near 51004

ZIPCityDistance
51044 Oto, IA 5.1 mi
51039 Moville, IA 8.2 mi
51016 Correctionville, IA 8.6 mi
51015 Climbing Hill, IA 8.8 mi
51056 Smithland, IA 9.8 mi
51026 Hornick, IA 11.5 mi
51051 Rodney, IA 12.3 mi
51019 Danbury, IA 12.4 mi
51048 Pierson, IA 12.4 mi
51018 Cushing, IA 13.0 mi

Find every ZIP code within 10 miles of 51004 →

Questions about this ZIP code

Where is ZIP code 51004?

51004 is in Anthon, Iowa, in Woodbury County, part of the Sioux City, IA-NE-SD metropolitan area. Its published point location is 42.3801, -95.9182.

What county is 51004 in?

51004 lies in Woodbury County.

What area code is 51004?

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

What time zone is 51004 in?

51004 uses America/Chicago.

How many people live in 51004?

About 858 people live in ZIP code 51004, in 423 households, at 10.2 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 51004?

$43,882 a year, against $75,059 across Iowa.

What ZIP codes are near 51004?

The closest are 51044 (5.1 mi), 51039 (8.2 mi), 51016 (8.6 mi), 51015 (8.8 mi) and 51056 (9.8 mi).

Is 51004 a PO Box ZIP code?

51004 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “51004 ZIP Code — Anthon, Iowa (Woodbury County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51004

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