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zipcodes.pro — ZIP/55921

55921

ZIP 55921 is Caledonia, Minnesota, in Houston County; area code 507; Central time.

Type
Standard
Time zone
America/Chicago
County
Houston
Population
4,659
Coordinates
43.6204, -91.4758
☼ Live from 55921 — Caledonia, MN

Weather right now

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Local time: —

Where 55921 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 55921
  • 🔢 Type 55921 into a pocket calculator and turn it upside down: IZGSS — not quite a word, sorry.
  • ➕ 55921 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 22, a total 2,607 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1101101001110001
  • 🏠 Its numerical neighbours: 55920 (Byron, MN, 63 mi away) and 55922 (Canton, MN, 21 mi away).
  • 🔄 Backwards, 55921 becomes 12955 — and that is a real ZIP code: Lyon Mountain, NY, 870 miles away.
  • 👥 26 other ZIP codes are made of exactly the same digits (12955, 15259, 15295, 15925, 15952, 19255, …). The farthest-flung twin is 95521 in Arcata, CA, 1,666 miles away.
  • 🧭 Farther north than 86% of all ZIP codes, and farther west than 60%.
  • 🎯450 miles northeast of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 55921 and you would come out at 43.62°S, 88.52°E — 953 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 26m of daylight. Shortest: 8h 56m.
  • 📏 At 175.2 square miles of land, 55921 is bigger than 89% of ZIP codes — room for about 133 Central Parks.
🌙 The sky over 55921 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population4,659This ZIP4,659
Households2,132This ZIP2,132
Housing units2,257This ZIP2,257
Median age47.2This ZIP47.2Minnesota38.8US 38.9
Median household income$80,161This ZIP$80,161Minnesota$89,062US $80,734
Median home value$201,600This ZIP$201,600Minnesota$329,300US $332,700
Median gross rent$836This ZIP$836Minnesota$1,280US $1,413
Bachelor's degree or higher20.4%This ZIP20.4%
Mean commute25.2 minThis ZIP25.2 min
Population density26.6 / sq miThis ZIP26.6 / sq mi

Business and tax activity

Business establishments126This ZIP126
Employees1,575This ZIP1,575
Annual payroll$93,198,000This ZIP$93,198,000
Tax returns filed2,270This ZIP2,270
Total adjusted gross income$162,805,000This ZIP$162,805,000

Land area

Land area175.18 sq miThis ZIP175.18 sq mi
Water area0.38 sq miThis ZIP0.38 sq mi

Other place names in 55921

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

ZIP codes near 55921

ZIPCityDistance
55919 Brownsville, MN 8.8 mi
55931 Eitzen, MN 9.0 mi
55974 Spring Grove, MN 9.1 mi
55941 Hokah, MN 9.6 mi
52160 New Albin, IA 12.2 mi
52140 Dorchester, IA 12.4 mi
55943 Houston, MN 12.4 mi
55947 La Crescent, MN 15.0 mi
54658 Stoddard, WI 15.1 mi
52149 Highlandville, IA 15.2 mi

Find every ZIP code within 10 miles of 55921 →

Questions about this ZIP code

Where is ZIP code 55921?

55921 is in Caledonia, Minnesota, in Houston County, part of the La Crosse-Onalaska, WI-MN metropolitan area. Its published point location is 43.6204, -91.4758.

What county is 55921 in?

55921 lies in Houston County.

What area code is 55921?

Caledonia uses area code 507, from NANPA's telephone records.

What time zone is 55921 in?

55921 uses America/Chicago.

How many people live in 55921?

About 4,659 people live in ZIP code 55921, in 2,132 households, at 26.6 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 55921?

$80,161 a year, against $89,062 across Minnesota.

What ZIP codes are near 55921?

The closest are 55919 (8.8 mi), 55931 (9 mi), 55974 (9.1 mi), 55941 (9.6 mi) and 52160 (12.2 mi).

Is 55921 a PO Box ZIP code?

55921 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “55921 ZIP Code — Caledonia, Minnesota (Houston County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/55921

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