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zipcodes.pro — ZIP/51355

51355

ZIP 51355 is Okoboji, Iowa, in Dickinson County; area code 712; Central time.

Type
Standard
Time zone
America/Chicago
County
Dickinson
Metro area
Spirit Lake, IA
Population
1,048
Coordinates
43.3887, -95.1405
☼ Live from 51355 — Okoboji, IA

Weather right now

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NEXRAD radar
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Local time: —

Where 51355 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 51355
  • 🔢 Type 51355 into a pocket calculator and turn it upside down: SSEIS — not quite a word, sorry.
  • ➕ As a number, 51,355 = 5 × 10271. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100100010011011
  • 🏠 Its numerical neighbours: 51354 (Ocheyedan, IA, 20 mi away) and 51357 (Royal, IA, 24 mi away).
  • 🔄 Backwards, 51355 becomes 55315 — and that is a real ZIP code: Carver, MN, 116 miles away.
  • 👥 9 other ZIP codes are made of exactly the same digits (15535, 15553, 31555, 35551, 51535, 51553, …). The farthest-flung twin is 31555 in Odum, GA, 1,077 miles away.
  • 🧭 Farther north than 85% of all ZIP codes, and farther west than 69%.
  • 🎯303 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 51355 and you would come out at 43.39°S, 84.86°E — 808 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 25m of daylight. Shortest: 8h 57m.
  • 📏 At 2.5 square miles of land, 51355 is bigger than 13% of ZIP codes — room for about 1.9 Central Parks.
🌙 The sky over 51355 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,048This ZIP1,048
Households614This ZIP614
Housing units1,492This ZIP1,492
Median age54.7This ZIP54.7Iowa38.6US 38.9
Median household income$72,262This ZIP$72,262Iowa$75,059US $80,734
Median home value$421,100This ZIP$421,100Iowa$208,000US $332,700
Median gross rent$942This ZIP$942Iowa$972US $1,413
Bachelor's degree or higher44.7%This ZIP44.7%
Mean commute15.0 minThis ZIP15.0 min
Population density412.6 / sq miThis ZIP412.6 / sq mi

Business and tax activity

Business establishments67This ZIP67
Employees501This ZIP501
Annual payroll$26,787,000This ZIP$26,787,000
Tax returns filed510This ZIP510
Total adjusted gross income$77,020,000This ZIP$77,020,000

Land area

Land area2.54 sq miThis ZIP2.54 sq mi
Water area1.19 sq miThis ZIP1.19 sq mi

Other place names in 51355

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

ZIP codes near 51355

ZIPCityDistance
51331 Arnolds Park, IA 2.1 mi
51360 Spirit Lake, IA 4.1 mi
51351 Milford, IA 5.5 mi
51347 Lake Park, IA 9.2 mi
51363 Superior, IA 10.2 mi
51340 Fostoria, IA 10.3 mi
51364 Terril, IA 10.8 mi
51345 Harris, IA 15.1 mi
51338 Everly, IA 15.5 mi
51301 Spencer, IA 16.3 mi

Find every ZIP code within 10 miles of 51355 →

Questions about this ZIP code

Where is ZIP code 51355?

51355 is in Okoboji, Iowa, in Dickinson County, part of the Spirit Lake, IA micropolitan area. Its published point location is 43.3887, -95.1405.

What county is 51355 in?

51355 lies in Dickinson County.

What area code is 51355?

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

What time zone is 51355 in?

51355 uses America/Chicago.

How many people live in 51355?

About 1,048 people live in ZIP code 51355, in 614 households, at 412.6 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 51355?

$72,262 a year, against $75,059 across Iowa.

What ZIP codes are near 51355?

The closest are 51331 (2.1 mi), 51360 (4.1 mi), 51351 (5.5 mi), 51347 (9.2 mi) and 51363 (10.2 mi).

Is 51355 a PO Box ZIP code?

51355 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “51355 ZIP Code — Okoboji, Iowa (Dickinson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/51355

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