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Where 57066 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 57066 into a pocket calculator and turn it upside down: ggOLS — not quite a word, sorry.
- ➕ As a number, 57,066 = 2 × 3 × 9511. Its digits add up to 24, a total 2,425 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1101111011101010 - 🏠 Its numerical neighbours: 57065 (Trent, SD, 89 mi away) and 57067 (Utica, SD, 20 mi away).
- 🔄 Backwards, 57066 becomes 66075 — and that is a real ZIP code: Pleasanton, KS, 370 miles away.
- 👥 30 other ZIP codes are made of exactly the same digits (05667, 05676, 05766, 06756, 07656, 50667, …). The farthest-flung twin is 05667 in Plainfield, VT, 1,271 miles away.
- 🧭 Farther north than 82% of all ZIP codes, and farther west than 77%.
- 🎯221 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 57066 and you would come out at 42.99°S, 82.13°E — 718 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 22m of daylight. Shortest: 9h 00m.
- 📏 At 114.2 square miles of land, 57066 is bigger than 81% of ZIP codes — room for about 87 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 1,424This ZIP1,424 |
|---|---|
| Households | 624This ZIP624 |
| Housing units | 810This ZIP810 |
| Median age | 50.8This ZIP50.8South Dakota38.0US 38.9 |
| Median household income | $56,389This ZIP$56,389South Dakota$75,081US $80,734 |
| Median home value | $112,000This ZIP$112,000South Dakota$257,400US $332,700 |
| Median gross rent | $753This ZIP$753South Dakota$946US $1,413 |
| Bachelor's degree or higher | 28.0%This ZIP28.0% |
| Mean commute | 18.0 minThis ZIP18.0 min |
| Population density | 12.5 / sq miThis ZIP12.5 / sq mi |
Business and tax activity
| Business establishments | 50This ZIP50 |
|---|---|
| Employees | 451This ZIP451 |
| Annual payroll | $18,373,000This ZIP$18,373,000 |
| Tax returns filed | 680This ZIP680 |
| Total adjusted gross income | $54,796,000This ZIP$54,796,000 |
Land area
| Land area | 114.20 sq miThis ZIP114.20 sq mi |
|---|---|
| Water area | 0.03 sq miThis ZIP0.03 sq mi |
Other place names in 57066
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 57066
| ZIP | City | Distance |
|---|---|---|
57315 | Avon, SD | 8.7 mi |
57063 | Tabor, SD | 10.1 mi |
57059 | Scotland, SD | 10.4 mi |
57062 | Springfield, SD | 10.6 mi |
57329 | Dante, SD | 14.1 mi |
57354 | Kaylor, SD | 14.2 mi |
57040 | Lesterville, SD | 15.0 mi |
57376 | Tripp, SD | 16.4 mi |
68760 | Niobrara, NE | 19.3 mi |
57067 | Utica, SD | 20.5 mi |
Find every ZIP code within 10 miles of 57066 →
Questions about this ZIP code
Where is ZIP code 57066?
57066 is in Tyndall, South Dakota, in Bon Homme County. Its published point location is 42.9887, -97.8672.
What county is 57066 in?
57066 lies in Bon Homme County.
What area code is 57066?
Tyndall uses area code 605, from NANPA's telephone records.
What time zone is 57066 in?
57066 uses America/Chicago.
How many people live in 57066?
About 1,424 people live in ZIP code 57066, in 624 households, at 12.5 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 57066?
$56,389 a year, against $75,081 across South Dakota.
What ZIP codes are near 57066?
The closest are 57315 (8.7 mi), 57063 (10.1 mi), 57059 (10.4 mi), 57062 (10.6 mi) and 57329 (14.1 mi).
Is 57066 a PO Box ZIP code?
57066 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “57066 ZIP Code — Tyndall, South Dakota (Bon Homme County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57066
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/57066.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.