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zipcodes.pro — ZIP/57278

57278

ZIP 57278 is Willow Lake, South Dakota, in Clark County; area code 605; Central time.

Type
Standard
Time zone
America/Chicago
County
Clark
Metro area
none
Population
1,011
Coordinates
44.6488, -97.6812
☼ Live from 57278 — Willow Lake, SD

Weather right now

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Local time: —

Where 57278 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.

★ Weird and wonderful facts about 57278
  • 🔢 Type 57278 into a pocket calculator and turn it upside down: BLZLS — not quite a word, sorry.
  • ➕ As a number, 57,278 = 2 × 13 × 2203. Its digits add up to 29, a total 1,296 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1101111110111110
  • 🏠 Its numerical neighbours: 57276 (White, SD, 54 mi away) and 57279 (Wilmot, SD, 66 mi away).
  • 🔄 Backwards, 57278 becomes 87275, which is not a ZIP code at all.
  • 👥 28 other ZIP codes are made of exactly the same digits (25778, 27587, 27857, 27875, 28577, 28757, …). The farthest-flung twin is 28577 in Sealevel, NC, 1,309 miles away.
  • 🧭 Farther north than 90% of all ZIP codes, and farther west than 76%.
  • 🎯336 miles north of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 57278 and you would come out at 44.65°S, 82.32°E — 655 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 48m.
  • 📏 At 157.6 square miles of land, 57278 is bigger than 87% of ZIP codes — room for about 120 Central Parks.
🌙 The sky over 57278 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,011This ZIP1,011
Households255This ZIP255
Housing units285This ZIP285
Median age24.6This ZIP24.6South Dakota38.0US 38.9
Median household income$70,208This ZIP$70,208South Dakota$75,081US $80,734
Median home value$220,400This ZIP$220,400South Dakota$257,400US $332,700
Median gross rent$808This ZIP$808South Dakota$946US $1,413
Bachelor's degree or higher25.5%This ZIP25.5%
Mean commute19.6 minThis ZIP19.6 min
Population density6.4 / sq miThis ZIP6.4 / sq mi

Business and tax activity

Business establishments25This ZIP25
Employees135This ZIP135
Annual payroll$7,318,000This ZIP$7,318,000
Tax returns filed370This ZIP370
Total adjusted gross income$30,473,000This ZIP$30,473,000

Land area

Land area157.59 sq miThis ZIP157.59 sq mi
Water area1.25 sq miThis ZIP1.25 sq mi

Other place names in 57278

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 57278

ZIPCityDistance
57271 Vienna, SD 10.3 mi
57221 Bryant, SD 12.1 mi
57322 Carpenter, SD 13.8 mi
57225 Clark, SD 16.4 mi
57233 Erwin, SD 16.9 mi
57242 Hazel, SD 18.1 mi
57386 Yale, SD 18.4 mi
57231 De Smet, SD 19.5 mi
57258 Raymond, SD 20.2 mi
57353 Iroquois, SD 20.8 mi

Find every ZIP code within 10 miles of 57278 →

Questions about this ZIP code

Where is ZIP code 57278?

57278 is in Willow Lake, South Dakota, in Clark County. Its published point location is 44.6488, -97.6812.

What county is 57278 in?

57278 lies in Clark County.

What area code is 57278?

Willow Lake uses area code 605, from NANPA's telephone records.

What time zone is 57278 in?

57278 uses America/Chicago.

How many people live in 57278?

About 1,011 people live in ZIP code 57278, in 255 households, at 6.4 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 57278?

$70,208 a year, against $75,081 across South Dakota.

What ZIP codes are near 57278?

The closest are 57271 (10.3 mi), 57221 (12.1 mi), 57322 (13.8 mi), 57225 (16.4 mi) and 57233 (16.9 mi).

Is 57278 a PO Box ZIP code?

57278 is a standard ZIP code. A normal ZIP code with street delivery.

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zipcodes.pro. “57278 ZIP Code — Willow Lake, South Dakota (Clark County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57278

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