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Where 57636 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 57636 into a pocket calculator and turn it upside down: gEgLS — not quite a word, sorry.
- ➕ As a number, 57,636 = 2 × 2 × 3 × 3 × 1601. Its digits add up to 27, a total 1,806 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1110000100100100 - 🏠 Its numerical neighbours: 57634 (Keldron, SD, 55 mi away) and 57638 (Lemmon, SD, 69 mi away).
- 🔄 Backwards, 57636 becomes 63675 — and that is a real ZIP code: Vulcan, MO, 771 miles away.
- 👥 32 other ZIP codes are made of exactly the same digits (35766, 36567, 36576, 36675, 36756, 36765, …). The farthest-flung twin is 36567 in Robertsdale, AL, 1,247 miles away.
- 🧭 Farther north than 91% of all ZIP codes, and farther west than 80%.
- 🎯388 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 57636 and you would come out at 45.03°S, 78.56°E — 492 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 37m of daylight. Shortest: 8h 46m.
- 📏 At 20.6 square miles of land, 57636 is bigger than 38% of ZIP codes — room for about 16 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 104This ZIP104 |
|---|---|
| Households | 41This ZIP41 |
| Housing units | 54This ZIP54 |
| Median age | 41.4This ZIP41.4South Dakota38.0US 38.9 |
| Median household income | $112,375This ZIP$112,375South Dakota$75,081US $80,734 |
| Median home value | $108,800This ZIP$108,800South Dakota$257,400US $332,700 |
| Bachelor's degree or higher | 12.5%This ZIP12.5% |
| Mean commute | 19.0 minThis ZIP19.0 min |
| Population density | 5.1 / sq miThis ZIP5.1 / sq mi |
Land area
| Land area | 20.57 sq miThis ZIP20.57 sq mi |
|---|---|
| Water area | 0.12 sq miThis ZIP0.12 sq mi |
Other place names in 57636
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 57636
| ZIP | City | Distance |
|---|---|---|
57623 | Dupree, SD | 10.6 mi |
57625 | Eagle Butte, SD | 20.5 mi |
57622 | Cherry Creek, SD | 25.0 mi |
57661 | Whitehorse, SD | 27.7 mi |
57633 | Isabel, SD | 28.6 mi |
57656 | Timber Lake, SD | 31.4 mi |
57630 | Glencross, SD | 35.6 mi |
57626 | Faith, SD | 36.0 mi |
57537 | Hayes, SD | 36.3 mi |
57652 | Ridgeview, SD | 37.5 mi |
Find every ZIP code within 10 miles of 57636 →
Questions about this ZIP code
Where is ZIP code 57636?
57636 is in Lantry, South Dakota, in Dewey County. Its published point location is 45.0325, -101.4381.
What county is 57636 in?
57636 lies in Dewey County.
What area code is 57636?
Lantry uses area code 605, from NANPA's telephone records.
What time zone is 57636 in?
57636 uses America/Denver.
How many people live in 57636?
About 104 people live in ZIP code 57636, in 41 households, at 5.1 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 57636?
$112,375 a year, against $75,081 across South Dakota.
What ZIP codes are near 57636?
The closest are 57623 (10.6 mi), 57625 (20.5 mi), 57622 (25 mi), 57661 (27.7 mi) and 57633 (28.6 mi).
Is 57636 a PO Box ZIP code?
57636 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “57636 ZIP Code — Lantry, South Dakota (Dewey County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57636
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/57636.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.