Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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/56538

56538

ZIP 56538 is in Fergus Falls, Minnesota, in Otter Tail County; area code 218; Central time. Fergus Falls has 2 ZIP codes; the other is 56537.

Type
No street area
Time zone
America/Chicago
County
Otter Tail
Metro area
Fergus Falls, MN
Coordinates
46.2830, -96.0776

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 56537, whose figures describe that area — not this ZIP code.

☼ Live from 56538 — Fergus Falls, MN

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Where 56538 is

This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 56538
  • 🔢 Type 56538 into a pocket calculator and turn it upside down: BESgS — not quite a word, sorry.
  • ➕ As a number, 56,538 = 2 × 3 × 3 × 3 × 3 × 349. Its digits add up to 27, a total 1,806 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1101110011011010
  • 🏠 Its numerical neighbours: 56537 (Fergus Falls, MN, 1 mi away) and 56540 (Fertile, MN, 87 mi away).
  • 🔄 Backwards, 56538 becomes 83565, which is not a ZIP code at all.
  • 👥 28 other ZIP codes are made of exactly the same digits (35586, 36558, 36585, 36855, 38556, 38565, …). The farthest-flung twin is 85356 in Wellton, AZ, 1,341 miles away.
  • 🧭 Farther north than 94% of all ZIP codes, and farther west than 72%.
  • 🎯463 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 56538 and you would come out at 46.28°S, 83.92°E — 669 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 48m of daylight. Shortest: 8h 36m.
🌙 The sky over 56538 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments17This ZIP17
Employees819This ZIP819
Annual payroll$43,542,000This ZIP$43,542,000

Land area

ZIP codes near 56538

ZIPCityDistance
56537 Fergus Falls, MN 0.8 mi
56533 Elizabeth, MN 8.6 mi
56324 Dalton, MN 11.4 mi
56586 Underwood, MN 12.0 mi
56543 Foxhome, MN 12.4 mi
56534 Erhard, MN 13.4 mi
56579 Rothsay, MN 17.6 mi
56590 Wendell, MN 18.0 mi
56522 Campbell, MN 18.1 mi
56515 Battle Lake, MN 18.5 mi

Find every ZIP code within 10 miles of 56538 →

Questions about this ZIP code

Where is ZIP code 56538?

56538 is in Fergus Falls, Minnesota, in Otter Tail County, part of the Fergus Falls, MN micropolitan area. Its published point location is 46.2830, -96.0776.

What county is 56538 in?

56538 lies in Otter Tail County.

What area code is 56538?

Fergus Falls uses area code 218, from NANPA's telephone records.

What time zone is 56538 in?

56538 uses America/Chicago.

What ZIP codes are near 56538?

The closest are 56537 (0.8 mi), 56533 (8.6 mi), 56324 (11.4 mi), 56586 (12 mi) and 56543 (12.4 mi).

Is 56538 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

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Cite this page

zipcodes.pro. “56538 ZIP Code — Fergus Falls, Minnesota (Otter Tail County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/56538

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/56538.json

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