Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/57722

57722

ZIP 57722 is Buffalo Gap, South Dakota, mostly in Oglala Lakota County; area code 605; Mountain time.

Type
Standard
Time zone
America/Denver
County
Oglala Lakota +2 more
Metro area
none
Population
177
Coordinates
43.4432, -102.9874
☼ Live from 57722 — Buffalo Gap, SD

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 57722 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 57722
  • 🔢 Type 57722 into a pocket calculator and turn it upside down: ZZLLS — not quite a word, sorry.
  • ➕ As a number, 57,722 = 2 × 7 × 7 × 19 × 31. Its digits add up to 23, a total 2,533 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 1110000101111010
  • 🏠 Its numerical neighbours: 57720 (Buffalo, SD, 148 mi away) and 57724 (Camp Crook, SD, 155 mi away).
  • 🔄 Backwards, 57722 becomes 22775, which is not a ZIP code at all.
  • 👥 16 other ZIP codes are made of exactly the same digits (22577, 25727, 25772, 27527, 27572, 52727, …). The farthest-flung twin is 22577 in Sandy Point, VA, 1,426 miles away.
  • 🧭 Farther north than 85% of all ZIP codes, and farther west than 81%.
  • 🎯338 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 57722 and you would come out at 43.44°S, 77.01°E — 520 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 25m of daylight. Shortest: 8h 57m.
  • 📏 At 544.7 square miles of land, 57722 is bigger than 98% of ZIP codes — room for about 414 Central Parks.
🌙 The sky over 57722 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population177This ZIP177
Households104This ZIP104
Housing units157This ZIP157
Median age57.5This ZIP57.5South Dakota38.0US 38.9
Median household income$59,306This ZIP$59,306South Dakota$75,081US $80,734
Median home value$69,200This ZIP$69,200South Dakota$257,400US $332,700
Bachelor's degree or higher28.2%This ZIP28.2%
Mean commute31.5 minThis ZIP31.5 min
Population density0.3 / sq miThis ZIP0.3 / sq mi

Business and tax activity

Business establishments6This ZIP6
Employees18This ZIP18
Annual payroll$706,000This ZIP$706,000
Tax returns filed160This ZIP160
Total adjusted gross income$9,016,000This ZIP$9,016,000

Land area

Land area544.72 sq miThis ZIP544.72 sq mi
Water area0.66 sq miThis ZIP0.66 sq mi

Counties 57722 spans

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

CountyShare of this ZIP
Oglala Lakota County 54.5%
Custer County 31.2%
Fall River County 14.3%

Other place names in 57722

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

ZIP codes near 57722

ZIPCityDistance
57766 Oral, SD 11.3 mi
57782 Smithwick, SD 16.5 mi
57764 Oglala, SD 16.8 mi
57738 Fairburn, SD 18.8 mi
57772 Porcupine, SD 23.2 mi
57744 Hermosa, SD 24.3 mi
57763 Oelrichs, SD 25.8 mi
57747 Hot Springs, SD 27.1 mi
57756 Manderson, SD 29.4 mi
57770 Pine Ridge, SD 29.9 mi

Find every ZIP code within 10 miles of 57722 →

Questions about this ZIP code

Where is ZIP code 57722?

57722 is in Buffalo Gap, South Dakota, in Oglala Lakota County. Its published point location is 43.4432, -102.9874.

What county is 57722 in?

57722 spans 3 counties: Oglala Lakota County, Custer County and Fall River County. Most of it falls in Oglala Lakota 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 57722?

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

What time zone is 57722 in?

57722 uses America/Denver.

How many people live in 57722?

About 177 people live in ZIP code 57722, in 104 households, at 0.3 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 57722?

$59,306 a year, against $75,081 across South Dakota.

What ZIP codes are near 57722?

The closest are 57766 (11.3 mi), 57782 (16.5 mi), 57764 (16.8 mi), 57738 (18.8 mi) and 57772 (23.2 mi).

Is 57722 a PO Box ZIP code?

57722 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “57722 ZIP Code — Buffalo Gap, South Dakota (Oglala Lakota County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/57722

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/57722.json

Underlying data is public domain or openly licensed — sources, vintages and licences.