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Where 57566 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 57566 into a pocket calculator and turn it upside down: ggSLS — not quite a word, sorry.
- ➕ As a number, 57,566 = 2 × 107 × 269. Its digits add up to 29, a total 1,296 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1110000011011110 - 🏠 Its numerical neighbours: 57564 (Onida, SD, 112 mi away) and 57567 (Philip, SD, 65 mi away).
- 🔄 Backwards, 57566 becomes 66575, which is not a ZIP code at all.
- 👥 19 other ZIP codes are made of exactly the same digits (55766, 56567, 56576, 56657, 56756, 57656, …). The farthest-flung twin is 76556 in Milano, TX, 902 miles away.
- 🧭 Farther north than 84% of all ZIP codes, and farther west than 80%.
- 🎯273 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 57566 and you would come out at 43.31°S, 78.91°E — 588 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 24m of daylight. Shortest: 8h 58m.
- 📏 At 153.1 square miles of land, 57566 is bigger than 87% of ZIP codes — room for about 116 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 1,184This ZIP1,184 |
|---|---|
| Households | 229This ZIP229 |
| Housing units | 261This ZIP261 |
| Median age | 18.2This ZIP18.2South Dakota38.0US 38.9 |
| Median household income | $14,176This ZIP$14,176South Dakota$75,081US $80,734 |
| Median home value | $12,200This ZIP$12,200South Dakota$257,400US $332,700 |
| Median gross rent | $443This ZIP$443South Dakota$946US $1,413 |
| Bachelor's degree or higher | 4.1%This ZIP4.1% |
| Population density | 7.7 / sq miThis ZIP7.7 / sq mi |
Business and tax activity
| Tax returns filed | 250This ZIP250 |
|---|---|
| Total adjusted gross income | $7,930,000This ZIP$7,930,000 |
Land area
| Land area | 153.12 sq miThis ZIP153.12 sq mi |
|---|---|
| Water area | 0.34 sq miThis ZIP0.34 sq mi |
Counties 57566 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Todd County | 90.8% |
| Mellette County | 9.3% |
Other place names in 57566
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 57566
| ZIP | City | Distance |
|---|---|---|
57560 | Norris, SD | 10.7 mi |
57570 | Rosebud, SD | 11.0 mi |
57572 | Saint Francis, SD | 11.9 mi |
57574 | Tuthill, SD | 19.6 mi |
57547 | Long Valley, SD | 20.9 mi |
57555 | Mission, SD | 21.3 mi |
57579 | White River, SD | 23.8 mi |
69216 | Kilgore, NE | 25.0 mi |
69212 | Crookston, NE | 26.9 mi |
57577 | Wanblee, SD | 32.1 mi |
Find every ZIP code within 10 miles of 57566 →
Questions about this ZIP code
Where is ZIP code 57566?
57566 is in Parmelee, South Dakota, in Todd County. Its published point location is 43.3087, -101.0894.
What county is 57566 in?
57566 spans 2 counties: Todd County and Mellette County. Most of it falls in Todd 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 57566?
Parmelee uses area code 605, from NANPA's telephone records.
What time zone is 57566 in?
57566 uses America/Chicago.
How many people live in 57566?
About 1,184 people live in ZIP code 57566, in 229 households, at 7.7 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 57566?
$14,176 a year, against $75,081 across South Dakota.
What ZIP codes are near 57566?
The closest are 57560 (10.7 mi), 57570 (11 mi), 57572 (11.9 mi), 57574 (19.6 mi) and 57547 (20.9 mi).
Is 57566 a PO Box ZIP code?
57566 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “57566 ZIP Code — Parmelee, South Dakota (Todd County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57566
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/57566.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.