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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/51250

51250

ZIP 51250 is Sioux Center, Iowa, in Sioux County; area code 712; Central time.

Type
Standard
Time zone
America/Chicago
County
Sioux
Metro area
none
Population
9,970
Coordinates
43.0909, -96.2058
☼ Live from 51250 — Sioux Center, IA

Weather right now

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NEXRAD radar
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Local time: —

Where 51250 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 51250
  • 🔢 Type 51250 into a pocket calculator and turn it upside down: OSZIS — not quite a word, sorry.
  • ➕ As a number, 51,250 = 2 × 5 × 5 × 5 × 5 × 41. Its digits add up to 13, a total 1,179 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100100000110010
  • 🏠 Its numerical neighbours: 51249 (Sibley, IA, 32 mi away) and 51301 (Spencer, IA, 53 mi away).
  • 🔄 Backwards, 51250 becomes 05215, which is not a ZIP code at all.
  • 👥 36 other ZIP codes are made of exactly the same digits (01255, 01525, 02155, 05152, 05251, 10552, …). The farthest-flung twin is 02155 in Medford, MA, 1,269 miles away.
  • 🧭 Farther north than 83% of all ZIP codes, and farther west than 72%.
  • 🎯257 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 51250 and you would come out at 43.09°S, 83.79°E — 778 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 22m of daylight. Shortest: 8h 59m.
  • 📏 At 73.3 square miles of land, 51250 is bigger than 70% of ZIP codes — room for about 56 Central Parks.
🌙 The sky over 51250 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population9,970This ZIP9,970
Households3,373This ZIP3,373
Housing units3,447This ZIP3,447
Median age31.6This ZIP31.6Iowa38.6US 38.9
Median household income$94,119This ZIP$94,119Iowa$75,059US $80,734
Median home value$294,000This ZIP$294,000Iowa$208,000US $332,700
Bachelor's degree or higher41.3%This ZIP41.3%
Mean commute12.1 minThis ZIP12.1 min
Population density136.1 / sq miThis ZIP136.1 / sq mi

Business and tax activity

Business establishments411This ZIP411
Employees7,941This ZIP7,941
Annual payroll$446,703,000This ZIP$446,703,000
Tax returns filed3,630This ZIP3,630
Total adjusted gross income$371,550,000This ZIP$371,550,000

Land area

Land area73.27 sq miThis ZIP73.27 sq mi
Water area0.09 sq miThis ZIP0.09 sq mi

Other place names in 51250

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

ZIP codes near 51250

ZIPCityDistance
51041 Orange City, IA 8.0 mi
51239 Hull, IA 8.3 mi
51036 Maurice, IA 8.4 mi
51247 Rock Valley, IA 9.7 mi
51027 Ireton, IA 10.6 mi
51234 Boyden, IA 11.7 mi
51003 Alton, IA 13.1 mi
51235 Doon, IA 14.1 mi
51023 Hawarden, IA 14.3 mi
51238 Hospers, IA 15.9 mi

Find every ZIP code within 10 miles of 51250 →

Questions about this ZIP code

Where is ZIP code 51250?

51250 is in Sioux Center, Iowa, in Sioux County. Its published point location is 43.0909, -96.2058.

What county is 51250 in?

51250 lies in Sioux County.

What area code is 51250?

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

What time zone is 51250 in?

51250 uses America/Chicago.

How many people live in 51250?

About 9,970 people live in ZIP code 51250, in 3,373 households, at 136.1 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 51250?

$94,119 a year, against $75,059 across Iowa.

What ZIP codes are near 51250?

The closest are 51041 (8 mi), 51239 (8.3 mi), 51036 (8.4 mi), 51247 (9.7 mi) and 51027 (10.6 mi).

Is 51250 a PO Box ZIP code?

51250 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “51250 ZIP Code — Sioux Center, Iowa (Sioux County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51250

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