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Where 57470 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 57470 into a pocket calculator and turn it upside down: OLhLS — not quite a word, sorry.
- ➕ As a number, 57,470 = 2 × 5 × 7 × 821. Its digits add up to 23, a total 2,533 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1110000001111110 - 🏠 Its numerical neighbours: 57469 (Redfield, SD, 16 mi away) and 57471 (Roscoe, SD, 41 mi away).
- 🔄 Backwards, 57470 becomes 07475, which is not a ZIP code at all.
- 👥 28 other ZIP codes are made of exactly the same digits (04757, 04775, 05477, 05747, 05774, 07457, …). The farthest-flung twin is 04757 in Mapleton, ME, 1,476 miles away.
- 🧭 Farther north than 91% of all ZIP codes, and farther west than 78%.
- 🎯350 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 57470 and you would come out at 44.88°S, 81.11°E — 597 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 36m of daylight. Shortest: 8h 47m.
- 📏 At 149.7 square miles of land, 57470 is bigger than 86% of ZIP codes — room for about 114 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 242This ZIP242 |
|---|---|
| Households | 55This ZIP55 |
| Housing units | 79This ZIP79 |
| Median age | 13.6This ZIP13.6South Dakota38.0US 38.9 |
| Median household income | $108,281This ZIP$108,281South Dakota$75,081US $80,734 |
| Median home value | $201,400This ZIP$201,400South Dakota$257,400US $332,700 |
| Bachelor's degree or higher | 22.4%This ZIP22.4% |
| Mean commute | 17.2 minThis ZIP17.2 min |
| Population density | 1.6 / sq miThis ZIP1.6 / sq mi |
Land area
| Land area | 149.72 sq miThis ZIP149.72 sq mi |
|---|---|
| Water area | 1.31 sq miThis ZIP1.31 sq mi |
Counties 57470 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Hand County | 59.9% |
| Faulk County | 40.1% |
Other place names in 57470
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 57470
| ZIP | City | Distance |
|---|---|---|
57467 | Orient, SD | 14.4 mi |
57469 | Redfield, SD | 15.9 mi |
57438 | Faulkton, SD | 17.8 mi |
57476 | Tulare, SD | 18.4 mi |
57435 | Cresbard, SD | 18.7 mi |
57424 | Ashton, SD | 20.5 mi |
57465 | Northville, SD | 21.5 mi |
57373 | Saint Lawrence, SD | 24.4 mi |
57473 | Seneca, SD | 29.2 mi |
57461 | Mellette, SD | 29.4 mi |
Find every ZIP code within 10 miles of 57470 →
Questions about this ZIP code
Where is ZIP code 57470?
57470 is in Rockham, South Dakota, in Hand County. Its published point location is 44.8839, -98.8943.
What county is 57470 in?
57470 spans 2 counties: Hand County and Faulk County. Most of it falls in Hand 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 57470?
Rockham uses area code 605, from NANPA's telephone records.
What time zone is 57470 in?
57470 uses America/Chicago.
How many people live in 57470?
About 242 people live in ZIP code 57470, in 55 households, at 1.6 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 57470?
$108,281 a year, against $75,081 across South Dakota.
What ZIP codes are near 57470?
The closest are 57467 (14.4 mi), 57469 (15.9 mi), 57438 (17.8 mi), 57476 (18.4 mi) and 57435 (18.7 mi).
Is 57470 a PO Box ZIP code?
57470 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “57470 ZIP Code — Rockham, South Dakota (Hand County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57470
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/57470.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.