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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/99105

99105

ZIP 99105 is Benge, Washington, in Adams County; area code 509; Pacific time.

Type
Standard
Time zone
America/Los_Angeles
County
Adams
Metro area
Othello, WA
Population
41
Coordinates
46.9569, -118.0729
☼ Live from 99105 — Benge, WA

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Where 99105 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 99105
  • 🔢 Type 99105 into a pocket calculator and turn it upside down: SOIGG — not quite a word, sorry.
  • ➕ As a number, 99,105 = 3 × 5 × 6607. Its digits add up to 24, a total 2,425 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11000001100100001
  • 🏠 Its numerical neighbours: 99104 (Belmont, WA, 43 mi away) and 99107 (Boyds, WA, 130 mi away).
  • 🔄 Backwards, 99105 becomes 50199, which is not a ZIP code at all.
  • 👥 18 other ZIP codes are made of exactly the same digits (10959, 15909, 19095, 19905, 19950, 59019, …). The farthest-flung twin is 19950 in Greenwood, DE, 2,194 miles away.
  • 🧭 Farther north than 95% of all ZIP codes, and farther west than 91%.
  • 🎯1,092 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 99105 and you would come out at 46.96°S, 61.93°E — 416 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 53m of daylight. Shortest: 8h 31m.
  • 📏 At 151.0 square miles of land, 99105 is bigger than 86% of ZIP codes — room for about 115 Central Parks.
🌙 The sky over 99105 today
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🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population41This ZIP41
Households23This ZIP23
Housing units29This ZIP29
Median age60.8This ZIP60.8Washington38.3US 38.9
Median household income$51,250This ZIP$51,250Washington$98,141US $80,734
Median home value$46,500This ZIP$46,500Washington$564,600US $332,700
Bachelor's degree or higher27.3%This ZIP27.3%
Population density0.3 / sq miThis ZIP0.3 / sq mi

Land area

Land area150.95 sq miThis ZIP150.95 sq mi
Water area0.53 sq miThis ZIP0.53 sq mi

ZIP codes near 99105

ZIPCityDistance
99125 Endicott, WA 15.4 mi
99143 Lacrosse, WA 17.0 mi
99371 Washtucna, WA 17.0 mi
99017 Lamont, WA 18.0 mi
99333 Hooper, WA 18.2 mi
99169 Ritzville, WA 18.3 mi
99136 Hay, WA 20.4 mi
99171 Saint John, WA 22.0 mi
99032 Sprague, WA 25.7 mi
99341 Lind, WA 27.1 mi

Find every ZIP code within 10 miles of 99105 →

Questions about this ZIP code

Where is ZIP code 99105?

99105 is in Benge, Washington, in Adams County, part of the Othello, WA micropolitan area. Its published point location is 46.9569, -118.0729.

What county is 99105 in?

99105 lies in Adams County.

What area code is 99105?

Benge uses area code 509, from NANPA's telephone records.

What time zone is 99105 in?

99105 uses America/Los_Angeles.

How many people live in 99105?

About 41 people live in ZIP code 99105, in 23 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 99105?

$51,250 a year, against $98,141 across Washington.

What ZIP codes are near 99105?

The closest are 99125 (15.4 mi), 99143 (17 mi), 99371 (17 mi), 99017 (18 mi) and 99333 (18.2 mi).

Is 99105 a PO Box ZIP code?

99105 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “99105 ZIP Code — Benge, Washington (Adams County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/99105

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