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Where 57641 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.
- 🔢 Type 57641 into a pocket calculator and turn it upside down: IhgLS — not quite a word, sorry.
- ➕ 57641 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 23, a total 2,533 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1110000100101001 - 🏠 Its numerical neighbours: 57640 (Lodgepole, SD, 68 mi away) and 57642 (Mc Laughlin, SD, 30 mi away).
- 🔄 Backwards, 57641 becomes 14675, which is not a ZIP code at all.
- 👥 55 other ZIP codes are made of exactly the same digits (14756, 15467, 15476, 15647, 15674, 15746, …). The farthest-flung twin is 17564 in Penryn, PA, 1,322 miles away.
- 🧭 Farther north than 93% of all ZIP codes, and farther west than 80%.
- 🎯441 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 57641 and you would come out at 45.90°S, 78.69°E — 461 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 44m of daylight. Shortest: 8h 39m.
- 📏 At 479.3 square miles of land, 57641 is bigger than 97% of ZIP codes — room for about 364 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 215This ZIP215 |
|---|---|
| Households | 104This ZIP104 |
| Housing units | 147This ZIP147 |
| Median age | 53.8This ZIP53.8South Dakota38.0US 38.9 |
| Median household income | $83,750This ZIP$83,750South Dakota$75,081US $80,734 |
| Median home value | $77,500This ZIP$77,500South Dakota$257,400US $332,700 |
| Median gross rent | $608This ZIP$608South Dakota$946US $1,413 |
| Bachelor's degree or higher | 24.8%This ZIP24.8% |
| Mean commute | 13.0 minThis ZIP13.0 min |
| Population density | 0.4 / sq miThis ZIP0.4 / sq mi |
Business and tax activity
| Business establishments | 10This ZIP10 |
|---|---|
| Employees | 23This ZIP23 |
| Annual payroll | $1,279,000This ZIP$1,279,000 |
Land area
| Land area | 479.26 sq miThis ZIP479.26 sq mi |
|---|---|
| Water area | 2.16 sq miThis ZIP2.16 sq mi |
Counties 57641 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Corson County | 62.4% |
| Sioux County | 27.8% |
| Grant County | 9.7% |
Other place names in 57641
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 57641
| ZIP | City | Distance |
|---|---|---|
57659 | Walker, SD | 10.4 mi |
57660 | Watauga, SD | 11.5 mi |
57621 | Bullhead, SD | 14.0 mi |
57645 | Morristown, SD | 19.5 mi |
58568 | Selfridge, ND | 20.5 mi |
58564 | Raleigh, ND | 25.6 mi |
58569 | Shields, ND | 26.2 mi |
57634 | Keldron, SD | 28.0 mi |
57639 | Little Eagle, SD | 28.6 mi |
57642 | Mc Laughlin, SD | 29.6 mi |
Find every ZIP code within 10 miles of 57641 →
Questions about this ZIP code
Where is ZIP code 57641?
57641 is in Mc Intosh, South Dakota, in Corson County. Its published point location is 45.8962, -101.3111.
What county is 57641 in?
57641 spans 3 counties: Corson County, Sioux County and Grant County. Most of it falls in Corson 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 time zone is 57641 in?
57641 uses America/Denver.
How many people live in 57641?
About 215 people live in ZIP code 57641, in 104 households, at 0.4 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 57641?
$83,750 a year, against $75,081 across South Dakota.
What ZIP codes are near 57641?
The closest are 57659 (10.4 mi), 57660 (11.5 mi), 57621 (14 mi), 57645 (19.5 mi) and 58568 (20.5 mi).
Is 57641 a PO Box ZIP code?
57641 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “57641 ZIP Code — Mc Intosh, South Dakota (Corson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57641
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/57641.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.