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Where 57544 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 57544 into a pocket calculator and turn it upside down: hhSLS — not quite a word, sorry.
- ➕ As a number, 57,544 = 2 × 2 × 2 × 7193. Its digits add up to 25, a total 2,242 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1110000011001000 - 🏠 Its numerical neighbours: 57543 (Kadoka, SD, 84 mi away) and 57547 (Long Valley, SD, 83 mi away).
- 🔄 Backwards, 57544 becomes 44575, which is not a ZIP code at all.
- 👥 18 other ZIP codes are made of exactly the same digits (45475, 45745, 47455, 47545, 54457, 54475, …). The farthest-flung twin is 45745 in Lower Salem, OH, 997 miles away.
- 🧭 Farther north than 87% of all ZIP codes, and farther west than 79%.
- 🎯288 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 57544 and you would come out at 43.88°S, 80.16°E — 603 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 28m of daylight. Shortest: 8h 54m.
- 📏 At 252.2 square miles of land, 57544 is bigger than 93% of ZIP codes — room for about 191 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 421This ZIP421 |
|---|---|
| Households | 192This ZIP192 |
| Housing units | 199This ZIP199 |
| Median age | 40.1This ZIP40.1South Dakota38.0US 38.9 |
| Median household income | $78,750This ZIP$78,750South Dakota$75,081US $80,734 |
| Median home value | $141,700This ZIP$141,700South Dakota$257,400US $332,700 |
| Median gross rent | $675This ZIP$675South Dakota$946US $1,413 |
| Bachelor's degree or higher | 31.0%This ZIP31.0% |
| Mean commute | 8.8 minThis ZIP8.8 min |
| Population density | 1.7 / sq miThis ZIP1.7 / sq mi |
Business and tax activity
| Business establishments | 15This ZIP15 |
|---|---|
| Employees | 119This ZIP119 |
| Annual payroll | $5,910,000This ZIP$5,910,000 |
| Tax returns filed | 200This ZIP200 |
| Total adjusted gross income | $15,572,000This ZIP$15,572,000 |
Land area
| Land area | 252.16 sq miThis ZIP252.16 sq mi |
|---|---|
| Water area | 2.20 sq miThis ZIP2.20 sq mi |
Counties 57544 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Lyman County | 93.9% |
| Tripp County | 6.1% |
Other place names in 57544
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 57544
| ZIP | City | Distance |
|---|---|---|
57568 | Presho, SD | 12.6 mi |
57569 | Reliance, SD | 14.5 mi |
57541 | Ideal, SD | 20.0 mi |
57365 | Oacoma, SD | 21.9 mi |
57576 | Vivian, SD | 22.4 mi |
57548 | Lower Brule, SD | 23.4 mi |
57534 | Hamill, SD | 24.2 mi |
57339 | Fort Thompson, SD | 25.3 mi |
57326 | Chamberlain, SD | 26.1 mi |
57325 | Chamberlain, SD | 26.7 mi |
Find every ZIP code within 10 miles of 57544 →
Questions about this ZIP code
Where is ZIP code 57544?
57544 is in Kennebec, South Dakota, in Lyman County. Its published point location is 43.8834, -99.8440.
What county is 57544 in?
57544 spans 2 counties: Lyman County and Tripp County. Most of it falls in Lyman 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 57544?
Kennebec uses area code 605, from NANPA's telephone records.
What time zone is 57544 in?
57544 uses America/Chicago.
How many people live in 57544?
About 421 people live in ZIP code 57544, in 192 households, at 1.7 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 57544?
$78,750 a year, against $75,081 across South Dakota.
What ZIP codes are near 57544?
The closest are 57568 (12.6 mi), 57569 (14.5 mi), 57541 (20 mi), 57365 (21.9 mi) and 57576 (22.4 mi).
Is 57544 a PO Box ZIP code?
57544 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “57544 ZIP Code — Kennebec, South Dakota (Lyman County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57544
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/57544.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.