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Where 57054 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 57054 into a pocket calculator and turn it upside down: hSOLS — not quite a word, sorry.
- ➕ As a number, 57,054 = 2 × 3 × 37 × 257. Its digits add up to 21, a total 2,594 other ZIP codes share.
- 💾In binary, the way a computer stores it:
1101111011011110 - 🏠 Its numerical neighbours: 57053 (Parker, SD, 49 mi away) and 57055 (Renner, SD, 40 mi away).
- 🔄 Backwards, 57054 becomes 45075, which is not a ZIP code at all.
- 👥 26 other ZIP codes are made of exactly the same digits (04575, 05457, 05745, 40575, 40755, 45750, …). The farthest-flung twin is 04575 in West Boothbay Harbor, ME, 1,366 miles away.
- 🧭 Farther north than 88% of all ZIP codes, and farther west than 75%.
- 🎯304 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 57054 and you would come out at 44.12°S, 82.74°E — 693 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 30m of daylight. Shortest: 8h 52m.
- 📏 At 116.2 square miles of land, 57054 is bigger than 81% of ZIP codes — room for about 88 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 703This ZIP703 |
|---|---|
| Households | 236This ZIP236 |
| Housing units | 290This ZIP290 |
| Median age | 31.4This ZIP31.4South Dakota38.0US 38.9 |
| Median household income | $86,875This ZIP$86,875South Dakota$75,081US $80,734 |
| Median home value | $97,100This ZIP$97,100South Dakota$257,400US $332,700 |
| Median gross rent | $850This ZIP$850South Dakota$946US $1,413 |
| Bachelor's degree or higher | 14.2%This ZIP14.2% |
| Mean commute | 15.5 minThis ZIP15.5 min |
| Population density | 6.0 / sq miThis ZIP6.0 / sq mi |
Business and tax activity
| Business establishments | 9This ZIP9 |
|---|---|
| Employees | 13This ZIP13 |
| Annual payroll | $774,000This ZIP$774,000 |
| Tax returns filed | 230This ZIP230 |
| Total adjusted gross income | $19,442,000This ZIP$19,442,000 |
Land area
| Land area | 116.22 sq miThis ZIP116.22 sq mi |
|---|---|
| Water area | 0.37 sq miThis ZIP0.37 sq mi |
Counties 57054 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Lake County | 99.1% |
| Miner County | 0.9% |
Other place names in 57054
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 57054
| ZIP | City | Distance |
|---|---|---|
57051 | Oldham, SD | 8.3 mi |
57076 | Winfred, SD | 11.2 mi |
57042 | Madison, SD | 11.6 mi |
57050 | Nunda, SD | 12.2 mi |
57061 | Sinai, SD | 13.9 mi |
57057 | Rutland, SD | 14.9 mi |
57075 | Wentworth, SD | 16.7 mi |
57349 | Howard, SD | 17.0 mi |
57071 | Volga, SD | 18.2 mi |
57212 | Arlington, SD | 19.0 mi |
Find every ZIP code within 10 miles of 57054 →
Questions about this ZIP code
Where is ZIP code 57054?
57054 is in Ramona, South Dakota, in Lake County. Its published point location is 44.1167, -97.2595.
What county is 57054 in?
57054 spans 2 counties: Lake County and Miner County. Most of it falls in Lake 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 57054?
Ramona uses area code 605, from NANPA's telephone records.
What time zone is 57054 in?
57054 uses America/Chicago.
How many people live in 57054?
About 703 people live in ZIP code 57054, in 236 households, at 6.0 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 57054?
$86,875 a year, against $75,081 across South Dakota.
What ZIP codes are near 57054?
The closest are 57051 (8.3 mi), 57076 (11.2 mi), 57042 (11.6 mi), 57050 (12.2 mi) and 57061 (13.9 mi).
Is 57054 a PO Box ZIP code?
57054 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “57054 ZIP Code — Ramona, South Dakota (Lake County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57054
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/57054.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.