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Where 57261 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 57261 into a pocket calculator and turn it upside down: IgZLS — not quite a word, sorry.
- ➕ As a number, 57,261 = 3 × 19087. Its digits add up to 21, a total 2,594 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1101111110101101 - 🏠 Its numerical neighbours: 57260 (Rosholt, SD, 43 mi away) and 57262 (Sisseton, SD, 22 mi away).
- 🔄 Backwards, 57261 becomes 16275, which is not a ZIP code at all.
- 👥 56 other ZIP codes are made of exactly the same digits (12567, 12765, 15267, 15276, 15627, 15672, …). The farthest-flung twin is 12567 in Pine Plains, NY, 1,210 miles away.
- 🧭 Farther north than 93% of all ZIP codes, and farther west than 76%.
- 🎯399 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 57261 and you would come out at 45.55°S, 82.50°E — 630 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 41m of daylight. Shortest: 8h 42m.
- 📏 At 67.5 square miles of land, 57261 is bigger than 68% of ZIP codes — room for about 51 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 277This ZIP277 |
|---|---|
| Households | 111This ZIP111 |
| Housing units | 142This ZIP142 |
| Median age | 49.9This ZIP49.9South Dakota38.0US 38.9 |
| Median household income | $77,813This ZIP$77,813South Dakota$75,081US $80,734 |
| Median home value | $167,500This ZIP$167,500South Dakota$257,400US $332,700 |
| Median gross rent | $525This ZIP$525South Dakota$946US $1,413 |
| Bachelor's degree or higher | 17.2%This ZIP17.2% |
| Mean commute | 29.9 minThis ZIP29.9 min |
| Population density | 4.1 / sq miThis ZIP4.1 / sq mi |
Business and tax activity
| Business establishments | 15This ZIP15 |
|---|---|
| Employees | 60This ZIP60 |
| Annual payroll | $1,971,000This ZIP$1,971,000 |
| Tax returns filed | 130This ZIP130 |
| Total adjusted gross income | $9,136,000This ZIP$9,136,000 |
Land area
| Land area | 67.50 sq miThis ZIP67.50 sq mi |
|---|---|
| Water area | 8.83 sq miThis ZIP8.83 sq mi |
Other place names in 57261
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 57261
| ZIP | City | Distance |
|---|---|---|
57232 | Eden, SD | 7.2 mi |
57239 | Grenville, SD | 9.3 mi |
57247 | Lake City, SD | 11.6 mi |
57468 | Pierpont, SD | 12.3 mi |
57454 | Langford, SD | 13.5 mi |
57274 | Webster, SD | 16.5 mi |
57273 | Waubay, SD | 18.3 mi |
57262 | Sisseton, SD | 22.3 mi |
57422 | Andover, SD | 22.4 mi |
57270 | Veblen, SD | 22.5 mi |
Find every ZIP code within 10 miles of 57261 →
Questions about this ZIP code
Where is ZIP code 57261?
57261 is in Roslyn, South Dakota, in Day County. Its published point location is 45.5456, -97.4996.
What county is 57261 in?
57261 lies in Day County.
What area code is 57261?
Roslyn uses area code 605, from NANPA's telephone records.
What time zone is 57261 in?
57261 uses America/Chicago.
How many people live in 57261?
About 277 people live in ZIP code 57261, in 111 households, at 4.1 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 57261?
$77,813 a year, against $75,081 across South Dakota.
What ZIP codes are near 57261?
The closest are 57232 (7.2 mi), 57239 (9.3 mi), 57247 (11.6 mi), 57468 (12.3 mi) and 57454 (13.5 mi).
Is 57261 a PO Box ZIP code?
57261 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “57261 ZIP Code — Roslyn, South Dakota (Day County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57261
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/57261.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.