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zipcodes.pro — ZIP/57783

57783

ZIP 57783 is in Spearfish, South Dakota, mostly in Lawrence County; area code 605; Mountain time. Spearfish has 2 ZIP codes; the other is 57799.

Type
Standard
Time zone
America/Denver
County
Lawrence +1 more
Metro area
Spearfish, SD
Population
17,248
Coordinates
44.4563, -103.9253
☼ Live from 57783 — Spearfish, SD

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Local time: —

Where 57783 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 57783
  • 🔢 Type 57783 into a pocket calculator and turn it upside down: EBLLS — not quite a word, sorry.
  • ➕ As a number, 57,783 = 3 × 11 × 17 × 103. Its digits add up to 30, a total 1,024 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1110000110110111
  • 🏠 Its numerical neighbours: 57782 (Smithwick, SD, 91 mi away) and 57785 (Sturgis, SD, 37 mi away).
  • 🔄 Backwards, 57783 becomes 38775, which is not a ZIP code at all.
  • 👥 31 other ZIP codes are made of exactly the same digits (37857, 38577, 53778, 57738, 58377, 58737, …). The farthest-flung twin is 78537 in Donna, TX, 1,305 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 57783 and you would come out at 44.46°S, 76.07°E — 436 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 33m of daylight. Shortest: 8h 50m.
  • 📏 At 213.2 square miles of land, 57783 is bigger than 92% of ZIP codes — room for about 162 Central Parks.
🌙 The sky over 57783 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population17,248This ZIP17,248
Households7,849This ZIP7,849
Housing units8,617This ZIP8,617
Median age41.0This ZIP41.0South Dakota38.0US 38.9
Median household income$74,844This ZIP$74,844South Dakota$75,081US $80,734
Median home value$373,300This ZIP$373,300South Dakota$257,400US $332,700
Median gross rent$965This ZIP$965South Dakota$946US $1,413
Bachelor's degree or higher38.1%This ZIP38.1%
Mean commute16.8 minThis ZIP16.8 min
Population density80.9 / sq miThis ZIP80.9 / sq mi

Business and tax activity

Business establishments837This ZIP837
Employees6,716This ZIP6,716
Annual payroll$300,884,000This ZIP$300,884,000
Tax returns filed9,360This ZIP9,360
Total adjusted gross income$938,142,000This ZIP$938,142,000

Land area

Land area213.21 sq miThis ZIP213.21 sq mi
Water area0.09 sq miThis ZIP0.09 sq mi

Counties 57783 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 57783

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

ZIP codes near 57783

ZIPCityDistance
57799 Spearfish, SD 3.9 mi
82712 Beulah, WY 10.9 mi
57779 Saint Onge, SD 11.2 mi
57754 Lead, SD 14.0 mi
57732 Deadwood, SD 14.6 mi
57793 Whitewood, SD 17.7 mi
82729 Sundance, WY 22.2 mi
57741 Fort Meade, SD 22.5 mi
57759 Nemo, SD 24.1 mi
82710 Aladdin, WY 24.9 mi

Find every ZIP code within 10 miles of 57783 →

Questions about this ZIP code

Where is ZIP code 57783?

57783 is in Spearfish, South Dakota, in Lawrence County, part of the Spearfish, SD micropolitan area. Its published point location is 44.4563, -103.9253.

What county is 57783 in?

57783 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 57783?

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

What time zone is 57783 in?

57783 uses America/Denver.

How many people live in 57783?

About 17,248 people live in ZIP code 57783, in 7,849 households, at 80.9 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 57783?

$74,844 a year, against $75,081 across South Dakota.

What ZIP codes are near 57783?

The closest are 57799 (3.9 mi), 82712 (10.9 mi), 57779 (11.2 mi), 57754 (14 mi) and 57732 (14.6 mi).

Is 57783 a PO Box ZIP code?

57783 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “57783 ZIP Code — Spearfish, South Dakota (Lawrence County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57783

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