Weather right now
Asking the National Weather Service…
Where 57239 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 57239 into a pocket calculator and turn it upside down: GEZLS — not quite a word, sorry.
- ➕ As a number, 57,239 = 7 × 13 × 17 × 37. Its digits add up to 26, a total 2,038 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1101111110010111 - 🏠 Its numerical neighbours: 57238 (Goodwin, SD, 49 mi away) and 57241 (Hayti, SD, 57 mi away).
- 🔄 Backwards, 57239 becomes 93275 — and that is a real ZIP code: Tulare, CA, 1,312 miles away.
- 👥 46 other ZIP codes are made of exactly the same digits (27359, 27539, 27593, 27935, 27953, 29375, …). The farthest-flung twin is 32957 in Roseland, FL, 1,530 miles away.
- 🧭 Farther north than 92% of all ZIP codes, and farther west than 75%.
- 🎯398 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 57239 and you would come out at 45.51°S, 82.69°E — 639 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 44.8 square miles of land, 57239 is bigger than 56% of ZIP codes — room for about 34 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 358This ZIP358 |
|---|---|
| Households | 186This ZIP186 |
| Housing units | 475This ZIP475 |
| Median age | 63.2This ZIP63.2South Dakota38.0US 38.9 |
| Median household income | $106,389This ZIP$106,389South Dakota$75,081US $80,734 |
| Median home value | $377,300This ZIP$377,300South Dakota$257,400US $332,700 |
| Bachelor's degree or higher | 34.9%This ZIP34.9% |
| Mean commute | 32.3 minThis ZIP32.3 min |
| Population density | 8.0 / sq miThis ZIP8.0 / sq mi |
Business and tax activity
| Business establishments | 9This ZIP9 |
|---|---|
| Employees | 37This ZIP37 |
| Annual payroll | $1,191,000This ZIP$1,191,000 |
| Tax returns filed | 110This ZIP110 |
| Total adjusted gross income | $12,069,000This ZIP$12,069,000 |
Land area
| Land area | 44.83 sq miThis ZIP44.83 sq mi |
|---|---|
| Water area | 2.49 sq miThis ZIP2.49 sq mi |
Other place names in 57239
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 57239
| ZIP | City | Distance |
|---|---|---|
57232 | Eden, SD | 8.8 mi |
57261 | Roslyn, SD | 9.3 mi |
57273 | Waubay, SD | 12.4 mi |
57257 | Peever, SD | 13.7 mi |
57247 | Lake City, SD | 15.7 mi |
57262 | Sisseton, SD | 15.9 mi |
57274 | Webster, SD | 18.2 mi |
57266 | Summit, SD | 18.6 mi |
57256 | Ortley, SD | 18.9 mi |
57468 | Pierpont, SD | 20.9 mi |
Find every ZIP code within 10 miles of 57239 →
Questions about this ZIP code
Where is ZIP code 57239?
57239 is in Grenville, South Dakota, in Day County. Its published point location is 45.5109, -97.3131.
What county is 57239 in?
57239 lies in Day County.
What area code is 57239?
Grenville uses area code 605, from NANPA's telephone records.
What time zone is 57239 in?
57239 uses America/Chicago.
How many people live in 57239?
About 358 people live in ZIP code 57239, in 186 households, at 8.0 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 57239?
$106,389 a year, against $75,081 across South Dakota.
What ZIP codes are near 57239?
The closest are 57232 (8.8 mi), 57261 (9.3 mi), 57273 (12.4 mi), 57257 (13.7 mi) and 57247 (15.7 mi).
Is 57239 a PO Box ZIP code?
57239 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “57239 ZIP Code — Grenville, South Dakota (Day County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57239
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/57239.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.