57331
ZIP 57331 is Dimock, South Dakota, mostly in Hutchinson County; area code 605; Central time.
- Type
- Standard
- Time zone
- America/Chicago
- County
- Hutchinson +2 more
- Metro area
- none
- Population
- 231
- Coordinates
- 43.4744, -98.0448
Weather right now
Asking the National Weather Service…
Where 57331 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 57331 into a pocket calculator and turn it upside down: IEELS — not quite a word, sorry.
- ➕ 57331 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 19, a total 2,454 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1101111111110011 - 🏠 Its numerical neighbours: 57330 (Delmont, SD, 16 mi away) and 57332 (Emery, SD, 20 mi away).
- 🔄 Backwards, 57331 becomes 13375, which is not a ZIP code at all.
- 👥 28 other ZIP codes are made of exactly the same digits (13357, 13753, 15337, 15733, 17335, 17353, …). The farthest-flung twin is 33157 in Miami, FL, 1,586 miles away.
- 🧭 Farther north than 85% of all ZIP codes, and farther west than 77%.
- 🎯253 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 57331 and you would come out at 43.47°S, 81.96°E — 690 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 25m of daylight. Shortest: 8h 57m.
- 📏 At 68.3 square miles of land, 57331 is bigger than 68% of ZIP codes — room for about 52 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 231This ZIP231 |
|---|---|
| Households | 111This ZIP111 |
| Housing units | 121This ZIP121 |
| Median age | 46.9This ZIP46.9South Dakota38.0US 38.9 |
| Median household income | $101,406This ZIP$101,406South Dakota$75,081US $80,734 |
| Median home value | $292,500This ZIP$292,500South Dakota$257,400US $332,700 |
| Bachelor's degree or higher | 16.3%This ZIP16.3% |
| Mean commute | 21.5 minThis ZIP21.5 min |
| Population density | 3.4 / sq miThis ZIP3.4 / sq mi |
Business and tax activity
| Business establishments | 6This ZIP6 |
|---|---|
| Employees | 66This ZIP66 |
| Annual payroll | $2,334,000This ZIP$2,334,000 |
| Tax returns filed | 220This ZIP220 |
| Total adjusted gross income | $16,287,000This ZIP$16,287,000 |
Land area
| Land area | 68.31 sq miThis ZIP68.31 sq mi |
|---|---|
| Water area | 0.01 sq miThis ZIP0.01 sq mi |
Counties 57331 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Hutchinson County | 65.8% |
| Douglas County | 23.3% |
| Davison County | 10.9% |
Other place names in 57331
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 57331
| ZIP | City | Distance |
|---|---|---|
57334 | Ethan, SD | 4.9 mi |
57366 | Parkston, SD | 7.6 mi |
57330 | Delmont, SD | 15.6 mi |
57301 | Mitchell, SD | 16.3 mi |
57363 | Mount Vernon, SD | 17.7 mi |
57376 | Tripp, SD | 18.3 mi |
57311 | Alexandria, SD | 18.6 mi |
57313 | Armour, SD | 19.5 mi |
57328 | Corsica, SD | 19.9 mi |
57332 | Emery, SD | 20.1 mi |
Find every ZIP code within 10 miles of 57331 →
Questions about this ZIP code
Where is ZIP code 57331?
57331 is in Dimock, South Dakota, in Hutchinson County. Its published point location is 43.4744, -98.0448.
What county is 57331 in?
57331 spans 3 counties: Hutchinson County, Douglas County and Davison County. Most of it falls in Hutchinson 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 57331?
Dimock uses area code 605, from NANPA's telephone records.
What time zone is 57331 in?
57331 uses America/Chicago.
How many people live in 57331?
About 231 people live in ZIP code 57331, in 111 households, at 3.4 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 57331?
$101,406 a year, against $75,081 across South Dakota.
What ZIP codes are near 57331?
The closest are 57334 (4.9 mi), 57366 (7.6 mi), 57330 (15.6 mi), 57301 (16.3 mi) and 57363 (17.7 mi).
Is 57331 a PO Box ZIP code?
57331 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “57331 ZIP Code — Dimock, South Dakota (Hutchinson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57331
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/57331.json Underlying data is public domain or openly licensed — sources, vintages and licences.