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Where 57312 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 57312 into a pocket calculator and turn it upside down: ZIELS — not quite a word, sorry.
- ➕ As a number, 57,312 = 2 × 2 × 2 × 2 × 2 × 3 × 3 × 199. Its digits add up to 18, a total 2,332 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1101111111100000 - 🏠 Its numerical neighbours: 57311 (Alexandria, SD, 49 mi away) and 57313 (Armour, SD, 61 mi away).
- 🔄 Backwards, 57312 becomes 21375, which is not a ZIP code at all.
- 👥 56 other ZIP codes are made of exactly the same digits (12537, 13752, 15237, 15327, 15723, 15732, …). The farthest-flung twin is 32751 in Maitland, FL, 1,426 miles away.
- 🧭 Farther north than 88% of all ZIP codes, and farther west than 78%.
- 🎯302 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 57312 and you would come out at 44.19°S, 81.62°E — 645 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 31m of daylight. Shortest: 8h 52m.
- 📏 At 130.3 square miles of land, 57312 is bigger than 84% of ZIP codes — room for about 99 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 596This ZIP596 |
|---|---|
| Households | 219This ZIP219 |
| Housing units | 224This ZIP224 |
| Median age | 40.3This ZIP40.3South Dakota38.0US 38.9 |
| Median household income | $91,688This ZIP$91,688South Dakota$75,081US $80,734 |
| Median home value | $137,500This ZIP$137,500South Dakota$257,400US $332,700 |
| Median gross rent | $925This ZIP$925South Dakota$946US $1,413 |
| Bachelor's degree or higher | 4.7%This ZIP4.7% |
| Mean commute | 14.7 minThis ZIP14.7 min |
| Population density | 4.6 / sq miThis ZIP4.6 / sq mi |
Business and tax activity
| Business establishments | 14This ZIP14 |
|---|---|
| Employees | 1,111This ZIP1,111 |
| Annual payroll | $86,000,000This ZIP$86,000,000 |
| Tax returns filed | 230This ZIP230 |
| Total adjusted gross income | $20,222,000This ZIP$20,222,000 |
Land area
| Land area | 130.28 sq miThis ZIP130.28 sq mi |
|---|---|
| Water area | 0.60 sq miThis ZIP0.60 sq mi |
Counties 57312 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Beadle County | 54.5% |
| Jerauld County | 42.4% |
| Sanborn County | 3.1% |
Other place names in 57312
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 57312
| ZIP | City | Distance |
|---|---|---|
57358 | Lane, SD | 8.4 mi |
57379 | Virgil, SD | 8.9 mi |
57385 | Woonsocket, SD | 10.9 mi |
57399 | Huron, SD | 14.4 mi |
57384 | Wolsey, SD | 16.3 mi |
57350 | Huron, SD | 16.5 mi |
57382 | Wessington Springs, SD | 17.5 mi |
57324 | Cavour, SD | 18.4 mi |
57381 | Wessington, SD | 21.8 mi |
57314 | Artesian, SD | 22.4 mi |
Find every ZIP code within 10 miles of 57312 →
Questions about this ZIP code
Where is ZIP code 57312?
57312 is in Alpena, South Dakota, in Beadle County, part of the Huron, SD micropolitan area. Its published point location is 44.1932, -98.3840.
What county is 57312 in?
57312 spans 3 counties: Beadle County, Jerauld County and Sanborn County. Most of it falls in Beadle 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 57312?
Alpena uses area code 605, from NANPA's telephone records.
What time zone is 57312 in?
57312 uses America/Chicago.
How many people live in 57312?
About 596 people live in ZIP code 57312, in 219 households, at 4.6 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 57312?
$91,688 a year, against $75,081 across South Dakota.
What ZIP codes are near 57312?
The closest are 57358 (8.4 mi), 57379 (8.9 mi), 57385 (10.9 mi), 57399 (14.4 mi) and 57384 (16.3 mi).
Is 57312 a PO Box ZIP code?
57312 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “57312 ZIP Code — Alpena, South Dakota (Beadle County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57312
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/57312.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.