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zipcodes.pro — ZIP/52133

52133

ZIP 52133 is Castalia, Iowa, mostly in Winneshiek County; area code 563; Central time.

Type
Standard
Time zone
America/Chicago
County
Winneshiek +1 more
Metro area
none
Population
673
Coordinates
43.1089, -91.6606
☼ Live from 52133 — Castalia, IA

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Local time: —

Where 52133 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 52133
  • 🔢 Type 52133 into a pocket calculator and turn it upside down: EEIZS — not quite a word, sorry.
  • ➕ As a number, 52,133 = 37 × 1409. Its digits add up to 14, a total 1,416 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1100101110100101
  • 🏠 Its numerical neighbours: 52132 (Calmar, IA, 15 mi away) and 52134 (Chester, IA, 45 mi away).
  • 🔄 Backwards, 52133 becomes 33125 — and that is a real ZIP code: Miami, FL, 1,360 miles away.
  • 👥 29 other ZIP codes are made of exactly the same digits (12533, 13235, 13325, 13352, 15233, 15323, …). The farthest-flung twin is 33125 in Miami, FL, 1,360 miles away.
  • 🧭 Farther north than 83% of all ZIP codes, and farther west than 60%.
  • 🎯424 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 52133 and you would come out at 43.11°S, 88.34°E — 964 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 23m of daylight. Shortest: 8h 59m.
  • 📏 At 43.7 square miles of land, 52133 is bigger than 56% of ZIP codes — room for about 33 Central Parks.
🌙 The sky over 52133 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population673This ZIP673
Households245This ZIP245
Housing units276This ZIP276
Median age44.3This ZIP44.3Iowa38.6US 38.9
Median household income$76,250This ZIP$76,250Iowa$75,059US $80,734
Median home value$246,100This ZIP$246,100Iowa$208,000US $332,700
Bachelor's degree or higher11.3%This ZIP11.3%
Mean commute20.4 minThis ZIP20.4 min
Population density15.4 / sq miThis ZIP15.4 / sq mi

Business and tax activity

Business establishments3This ZIP3
Employees3This ZIP3
Annual payroll$65,000This ZIP$65,000
Tax returns filed220This ZIP220
Total adjusted gross income$13,814,000This ZIP$13,814,000

Land area

Land area43.67 sq miThis ZIP43.67 sq mi
Water area0.01 sq miThis ZIP0.01 sq mi

Counties 52133 spans

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

CountyShare of this ZIP
Winneshiek County 70.2%
Fayette County 29.8%

Other place names in 52133

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

ZIP codes near 52133

ZIPCityDistance
52161 Ossian, IA 5.0 mi
52162 Postville, IA 5.4 mi
52135 Clermont, IA 6.1 mi
52156 Luana, IA 10.6 mi
52175 West Union, IA 11.5 mi
52141 Elgin, IA 12.3 mi
52166 Saint Lucas, IA 14.2 mi
52172 Waukon, IA 14.3 mi
52159 Monona, IA 15.0 mi
52132 Calmar, IA 15.2 mi

Find every ZIP code within 10 miles of 52133 →

Questions about this ZIP code

Where is ZIP code 52133?

52133 is in Castalia, Iowa, in Winneshiek County. Its published point location is 43.1089, -91.6606.

What county is 52133 in?

52133 spans 2 counties: Winneshiek County and Fayette County. Most of it falls in Winneshiek 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 52133?

Castalia uses area code 563, from NANPA's telephone records.

What time zone is 52133 in?

52133 uses America/Chicago.

How many people live in 52133?

About 673 people live in ZIP code 52133, in 245 households, at 15.4 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 52133?

$76,250 a year, against $75,059 across Iowa.

What ZIP codes are near 52133?

The closest are 52161 (5 mi), 52162 (5.4 mi), 52135 (6.1 mi), 52156 (10.6 mi) and 52175 (11.5 mi).

Is 52133 a PO Box ZIP code?

52133 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “52133 ZIP Code — Castalia, Iowa (Winneshiek County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/52133

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