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Where 57345 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 57345 into a pocket calculator and turn it upside down: ShELS — not quite a word, sorry.
- ➕ As a number, 57,345 = 3 × 5 × 3823. Its digits add up to 24, a total 2,425 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1110000000000001 - 🏠 Its numerical neighbours: 57344 (Harrison, SD, 88 mi away) and 57346 (Stephan, SD, 23 mi away).
- 🔄 Backwards, 57345 becomes 54375, which is not a ZIP code at all.
- 👥 33 other ZIP codes are made of exactly the same digits (34755, 35457, 35475, 35574, 35745, 35754, …). The farthest-flung twin is 34755 in Minneola, FL, 1,472 miles away.
- 🧭 Farther north than 89% of all ZIP codes, and farther west than 79%.
- 🎯331 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 57345 and you would come out at 44.58°S, 80.56°E — 588 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 34m of daylight. Shortest: 8h 49m.
- 📏 At 646.3 square miles of land, 57345 is bigger than 98% of ZIP codes — room for about 491 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 941This ZIP941 |
|---|---|
| Households | 410This ZIP410 |
| Housing units | 506This ZIP506 |
| Median age | 55.7This ZIP55.7South Dakota38.0US 38.9 |
| Median household income | $75,735This ZIP$75,735South Dakota$75,081US $80,734 |
| Median home value | $171,900This ZIP$171,900South Dakota$257,400US $332,700 |
| Median gross rent | $940This ZIP$940South Dakota$946US $1,413 |
| Bachelor's degree or higher | 23.1%This ZIP23.1% |
| Mean commute | 12.6 minThis ZIP12.6 min |
| Population density | 1.5 / sq miThis ZIP1.5 / sq mi |
Business and tax activity
| Business establishments | 36This ZIP36 |
|---|---|
| Employees | 248This ZIP248 |
| Annual payroll | $14,899,000This ZIP$14,899,000 |
| Tax returns filed | 530This ZIP530 |
| Total adjusted gross income | $41,523,000This ZIP$41,523,000 |
Land area
| Land area | 646.28 sq miThis ZIP646.28 sq mi |
|---|---|
| Water area | 2.86 sq miThis ZIP2.86 sq mi |
Other place names in 57345
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 57345
| ZIP | City | Distance |
|---|---|---|
57540 | Holabird, SD | 11.4 mi |
57371 | Ree Heights, SD | 14.7 mi |
57536 | Harrold, SD | 19.7 mi |
57362 | Miller, SD | 19.9 mi |
57467 | Orient, SD | 22.1 mi |
57346 | Stephan, SD | 22.8 mi |
57522 | Blunt, SD | 26.0 mi |
57373 | Saint Lawrence, SD | 28.1 mi |
57473 | Seneca, SD | 28.6 mi |
57548 | Lower Brule, SD | 29.2 mi |
Find every ZIP code within 10 miles of 57345 →
Questions about this ZIP code
Where is ZIP code 57345?
57345 is in Highmore, South Dakota, in Hyde County. Its published point location is 44.5784, -99.4444.
What county is 57345 in?
57345 lies in Hyde County.
What area code is 57345?
Highmore uses area code 605, from NANPA's telephone records.
What time zone is 57345 in?
57345 uses America/Chicago.
How many people live in 57345?
About 941 people live in ZIP code 57345, in 410 households, at 1.5 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 57345?
$75,735 a year, against $75,081 across South Dakota.
What ZIP codes are near 57345?
The closest are 57540 (11.4 mi), 57371 (14.7 mi), 57536 (19.7 mi), 57362 (19.9 mi) and 57467 (22.1 mi).
Is 57345 a PO Box ZIP code?
57345 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “57345 ZIP Code — Highmore, South Dakota (Hyde County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57345
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/57345.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.