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/57101

57101

ZIP 57101 is in Sioux Falls, South Dakota, in Minnehaha County; area code 605; Central time. Sioux Falls has 15 ZIP codes in all.

Type
No street area
Time zone
America/Chicago
County
Minnehaha
Metro area
Sioux Falls, SD-MN
Coordinates
43.5464, -96.6906

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 57103, whose figures describe that area — not this ZIP code.

☼ Live from 57101 — Sioux Falls, SD

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Where 57101 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 57101
  • 🔢 Type 57101 into a pocket calculator and turn it upside down: IOILS — not quite a word, sorry.
  • ➕ As a number, 57,101 = 11 × 29 × 179. Its digits add up to 14, a total 1,416 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1101111100001101
  • 🏠 Its numerical neighbours: 57078 (Yankton, SD, 58 mi away) and 57103 (Sioux Falls, SD, 1 mi away).
  • 🔄 Backwards, 57101 becomes 10175 — and that is a real ZIP code: New York, NY, 1,175 miles away.
  • 👥 28 other ZIP codes are made of exactly the same digits (01571, 07511, 10157, 10175, 10517, 11507, …). The farthest-flung twin is 01571 in Dudley, MA, 1,255 miles away.
  • 🧭 Farther north than 85% of all ZIP codes, and farther west than 73%.
  • 🎯275 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 57101 and you would come out at 43.55°S, 83.31°E — 739 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.
🌙 The sky over 57101 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

Business and tax activity

Business establishments39This ZIP39
Employees527This ZIP527
Annual payroll$70,028,000This ZIP$70,028,000

Land area

ZIP codes near 57101

ZIPCityDistance
57103 Sioux Falls, SD 0.6 mi
57186 Sioux Falls, SD 2.1 mi
57110 Sioux Falls, SD 2.6 mi
57197 Sioux Falls, SD 2.8 mi
57105 Sioux Falls, SD 2.9 mi
57117 Sioux Falls, SD 3.4 mi
57104 Sioux Falls, SD 4.0 mi
57108 Sioux Falls, SD 4.8 mi
57005 Brandon, SD 6.1 mi
57107 Sioux Falls, SD 7.3 mi

Find every ZIP code within 10 miles of 57101 →

Questions about this ZIP code

Where is ZIP code 57101?

57101 is in Sioux Falls, South Dakota, in Minnehaha County, part of the Sioux Falls, SD-MN metropolitan area. Its published point location is 43.5464, -96.6906.

What county is 57101 in?

57101 lies in Minnehaha County.

What area code is 57101?

Sioux Falls uses area code 605, from NANPA's telephone records.

What time zone is 57101 in?

57101 uses America/Chicago.

What ZIP codes are near 57101?

The closest are 57103 (0.6 mi), 57186 (2.1 mi), 57110 (2.6 mi), 57197 (2.8 mi) and 57105 (2.9 mi).

Is 57101 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. “57101 ZIP Code — Sioux Falls, South Dakota (Minnehaha County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57101

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/57101.json

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