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/57341

57341

ZIP 57341 is Gann Valley, South Dakota, mostly in Buffalo County; area code 605; Central time.

Type
Standard
Time zone
America/Chicago
County
Buffalo +1 more
Metro area
none
Population
79
Coordinates
44.0947, -99.1180
☼ Live from 57341 — Gann Valley, SD

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 57341 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 57341
  • 🔢 Type 57341 into a pocket calculator and turn it upside down: IhELS — not quite a word, sorry.
  • ➕ As a number, 57,341 = 17 × 3373. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1101111111111101
  • 🏠 Its numerical neighbours: 57340 (Fulton, SD, 66 mi away) and 57342 (Geddes, SD, 62 mi away).
  • 🔄 Backwards, 57341 becomes 14375, which is not a ZIP code at all.
  • 👥 54 other ZIP codes are made of exactly the same digits (13457, 13475, 13745, 13754, 14537, 14735, …). The farthest-flung twin is 34715 in Clermont, FL, 1,435 miles away.
  • 🧭 Farther north than 88% of all ZIP codes, and farther west than 79%.
  • 🎯296 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 57341 and you would come out at 44.09°S, 80.88°E — 621 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 30m of daylight. Shortest: 8h 52m.
  • 📏 At 248.0 square miles of land, 57341 is bigger than 93% of ZIP codes — room for about 188 Central Parks.
🌙 The sky over 57341 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population79This ZIP79
Households27This ZIP27
Housing units27This ZIP27
Median age34.5This ZIP34.5South Dakota38.0US 38.9
Bachelor's degree or higher52.3%This ZIP52.3%
Population density0.3 / sq miThis ZIP0.3 / sq mi

Land area

Land area248.01 sq miThis ZIP248.01 sq mi
Water area0.73 sq miThis ZIP0.73 sq mi

Counties 57341 spans

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

CountyShare of this ZIP
Buffalo County 96.2%
Brule County 3.8%

Other place names in 57341

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

ZIP codes near 57341

ZIPCityDistance
57339 Fort Thompson, SD 17.3 mi
57370 Pukwana, SD 19.4 mi
57346 Stephan, SD 19.9 mi
57325 Chamberlain, SD 20.4 mi
57382 Wessington Springs, SD 21.9 mi
57326 Chamberlain, SD 22.3 mi
57355 Kimball, SD 23.4 mi
57548 Lower Brule, SD 23.9 mi
57371 Ree Heights, SD 24.2 mi
57365 Oacoma, SD 24.6 mi

Find every ZIP code within 10 miles of 57341 →

Questions about this ZIP code

Where is ZIP code 57341?

57341 is in Gann Valley, South Dakota, in Buffalo County. Its published point location is 44.0947, -99.1180.

What county is 57341 in?

57341 spans 2 counties: Buffalo County and Brule County. Most of it falls in Buffalo 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 57341?

Gann Valley uses area code 605, from NANPA's telephone records.

What time zone is 57341 in?

57341 uses America/Chicago.

How many people live in 57341?

About 79 people live in ZIP code 57341, in 27 households, at 0.3 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What ZIP codes are near 57341?

The closest are 57339 (17.3 mi), 57370 (19.4 mi), 57346 (19.9 mi), 57325 (20.4 mi) and 57382 (21.9 mi).

Is 57341 a PO Box ZIP code?

57341 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “57341 ZIP Code — Gann Valley, South Dakota (Buffalo County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57341

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/57341.json

Underlying data is public domain or openly licensed — sources, vintages and licences.