57639
ZIP 57639 is Little Eagle, South Dakota, in Corson County; area code 605; Mountain time.
- Type
- Standard
- Time zone
- America/Denver
- County
- Corson
- Metro area
- none
- Population
- 290
- Coordinates
- 45.6787, -100.8070
Weather right now
Asking the National Weather Service…
Where 57639 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 57639 into a pocket calculator and turn it upside down: GEgLS — not quite a word, sorry.
- ➕ As a number, 57,639 = 3 × 19213. Its digits add up to 30, a total 1,024 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1110000100100111 - 🏠 Its numerical neighbours: 57638 (Lemmon, SD, 70 mi away) and 57640 (Lodgepole, SD, 92 mi away).
- 🔄 Backwards, 57639 becomes 93675 — and that is a real ZIP code: Yokuts, CA, 1,134 miles away.
- 👥 45 other ZIP codes are made of exactly the same digits (35769, 35967, 35976, 36579, 36759, 37659, …). The farthest-flung twin is 96375 in FPO AA, a military post office, 6,608 miles away.
- 🧭 Farther north than 93% of all ZIP codes, and farther west than 80%.
- 🎯420 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 57639 and you would come out at 45.68°S, 79.19°E — 489 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 43m of daylight. Shortest: 8h 41m.
- 📏 At 2.0 square miles of land, 57639 is bigger than 11% of ZIP codes — room for about 1.5 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 290This ZIP290 |
|---|---|
| Households | 72This ZIP72 |
| Housing units | 87This ZIP87 |
| Median age | 18.7This ZIP18.7South Dakota38.0US 38.9 |
| Median household income | $21,250This ZIP$21,250South Dakota$75,081US $80,734 |
| Median gross rent | $243This ZIP$243South Dakota$946US $1,413 |
| Bachelor's degree or higher | 0.0% |
| Mean commute | 23.9 minThis ZIP23.9 min |
| Population density | 146.6 / sq miThis ZIP146.6 / sq mi |
Land area
| Land area | 1.98 sq miThis ZIP1.98 sq mi |
|---|---|
| Water area | 0.12 sq miThis ZIP0.12 sq mi |
Other place names in 57639
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 57639
| ZIP | City | Distance |
|---|---|---|
57642 | Mc Laughlin, SD | 8.9 mi |
57657 | Trail City, SD | 11.1 mi |
57658 | Wakpala, SD | 11.8 mi |
57621 | Bullhead, SD | 14.7 mi |
57659 | Walker, SD | 20.2 mi |
57656 | Timber Lake, SD | 22.9 mi |
57630 | Glencross, SD | 23.9 mi |
57631 | Glenham, SD | 25.4 mi |
57641 | Mc Intosh, SD | 28.6 mi |
58538 | Fort Yates, ND | 28.7 mi |
Find every ZIP code within 10 miles of 57639 →
Questions about this ZIP code
Where is ZIP code 57639?
57639 is in Little Eagle, South Dakota, in Corson County. Its published point location is 45.6787, -100.8070.
What county is 57639 in?
57639 lies in Corson County.
What area code is 57639?
Little Eagle uses area code 605, from NANPA's telephone records.
What time zone is 57639 in?
57639 uses America/Denver.
How many people live in 57639?
About 290 people live in ZIP code 57639, in 72 households, at 146.6 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 57639?
$21,250 a year, against $75,081 across South Dakota.
What ZIP codes are near 57639?
The closest are 57642 (8.9 mi), 57657 (11.1 mi), 57658 (11.8 mi), 57621 (14.7 mi) and 57659 (20.2 mi).
Is 57639 a PO Box ZIP code?
57639 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “57639 ZIP Code — Little Eagle, South Dakota (Corson County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57639
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/57639.json Underlying data is public domain or openly licensed — sources, vintages and licences.