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zipcodes.pro — ZIP/57779

57779

ZIP 57779 is Saint Onge, South Dakota, mostly in Lawrence County; area code 605; Mountain time.

Type
Standard
Time zone
America/Denver
County
Lawrence +1 more
Metro area
Spearfish, SD
Population
347
Coordinates
44.5688, -103.7607
☼ Live from 57779 — Saint Onge, SD

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Where 57779 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 57779
  • 🔢 Type 57779 into a pocket calculator and turn it upside down: GLLLS — not quite a word, sorry.
  • ➕ As a number, 57,779 = 19 × 3041. Its digits add up to 35, a total 212 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1110000110110011
  • 🏠 Its numerical neighbours: 57776 (Redig, SD, 48 mi away) and 57780 (Scenic, SD, 84 mi away).
  • 🔄 Backwards, 57779 becomes 97775, which is not a ZIP code at all.
  • 👥 6 other ZIP codes are made of exactly the same digits (75779, 75797, 75977, 77597, 77957, 77975). The farthest-flung twin is 77957 in Edna, TX, 1,141 miles away.
  • 🧭 Farther north than 89% of all ZIP codes, and farther west than 82%.
  • 🎯421 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 57779 and you would come out at 44.57°S, 76.24°E — 435 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 41.1 square miles of land, 57779 is bigger than 54% of ZIP codes — room for about 31 Central Parks.
🌙 The sky over 57779 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population347This ZIP347
Households174This ZIP174
Housing units219This ZIP219
Median age53.3This ZIP53.3South Dakota38.0US 38.9
Median home value$286,400This ZIP$286,400South Dakota$257,400US $332,700
Bachelor's degree or higher67.4%This ZIP67.4%
Mean commute28.7 minThis ZIP28.7 min
Population density8.5 / sq miThis ZIP8.5 / sq mi

Business and tax activity

Business establishments12This ZIP12
Employees220This ZIP220
Annual payroll$11,575,000This ZIP$11,575,000
Tax returns filed160This ZIP160
Total adjusted gross income$13,451,000This ZIP$13,451,000

Land area

Land area41.06 sq miThis ZIP41.06 sq mi
Water area0.04 sq miThis ZIP0.04 sq mi

Counties 57779 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Lawrence County 96.3%
Butte County 3.7%

Other place names in 57779

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

ZIP codes near 57779

ZIPCityDistance
57799 Spearfish, SD 7.4 mi
57793 Whitewood, SD 9.4 mi
57783 Spearfish, SD 11.2 mi
57762 Nisland, SD 14.5 mi
57732 Deadwood, SD 16.9 mi
57741 Fort Meade, SD 17.9 mi
82712 Beulah, WY 18.1 mi
57754 Lead, SD 22.5 mi
57759 Nemo, SD 25.6 mi
57717 Belle Fourche, SD 26.1 mi

Find every ZIP code within 10 miles of 57779 →

Questions about this ZIP code

Where is ZIP code 57779?

57779 is in Saint Onge, South Dakota, in Lawrence County, part of the Spearfish, SD micropolitan area. Its published point location is 44.5688, -103.7607.

What county is 57779 in?

57779 spans 2 counties: Lawrence County and Butte County. Most of it falls in Lawrence 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 57779?

Saint Onge uses area code 605, from NANPA's telephone records.

What time zone is 57779 in?

57779 uses America/Denver.

How many people live in 57779?

About 347 people live in ZIP code 57779, in 174 households, at 8.5 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What ZIP codes are near 57779?

The closest are 57799 (7.4 mi), 57793 (9.4 mi), 57783 (11.2 mi), 57762 (14.5 mi) and 57732 (16.9 mi).

Is 57779 a PO Box ZIP code?

57779 is a standard ZIP code. A normal ZIP code with street delivery.

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zipcodes.pro. “57779 ZIP Code — Saint Onge, South Dakota (Lawrence County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57779

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