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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/99125

99125

ZIP 99125 is Endicott, Washington, in Whitman County; area code 509; Pacific time.

Type
Standard
Time zone
America/Los_Angeles
County
Whitman
Metro area
Pullman, WA
Population
611
Coordinates
46.9614, -117.7473
☼ Live from 99125 — Endicott, WA

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NEXRAD radar
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Local time: —

Where 99125 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 99125
  • 🔢 Type 99125 into a pocket calculator and turn it upside down: SZIGG — not quite a word, sorry.
  • ➕ As a number, 99,125 = 5 × 5 × 5 × 13 × 61. Its digits add up to 26, a total 2,038 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11000001100110101
  • 🏠 Its numerical neighbours: 99124 (Elmer City, WA, 91 mi away) and 99126 (Evans, WA, 123 mi away).
  • 🔄 Backwards, 99125 becomes 52199, which is not a ZIP code at all.
  • 👥 24 other ZIP codes are made of exactly the same digits (12959, 12995, 15929, 19529, 19952, 25919, …). The farthest-flung twin is 29915 in Daufuskie Island, SC, 2,189 miles away.
  • 🧭 Farther north than 95% of all ZIP codes, and farther west than 91%.
  • 🎯1,077 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 99125 and you would come out at 46.96°S, 62.25°E — 402 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 193.4 square miles of land, 99125 is bigger than 90% of ZIP codes — room for about 147 Central Parks.
🌙 The sky over 99125 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population611This ZIP611
Households245This ZIP245
Housing units318This ZIP318
Median age41.5This ZIP41.5Washington38.3US 38.9
Median household income$52,569This ZIP$52,569Washington$98,141US $80,734
Median home value$195,800This ZIP$195,800Washington$564,600US $332,700
Median gross rent$878This ZIP$878Washington$1,760US $1,413
Bachelor's degree or higher23.2%This ZIP23.2%
Mean commute25.4 minThis ZIP25.4 min
Population density3.2 / sq miThis ZIP3.2 / sq mi

Business and tax activity

Business establishments9This ZIP9
Employees34This ZIP34
Annual payroll$2,383,000This ZIP$2,383,000
Tax returns filed210This ZIP210
Total adjusted gross income$13,462,000This ZIP$13,462,000

Land area

Land area193.38 sq miThis ZIP193.38 sq mi
Water area0.15 sq miThis ZIP0.15 sq mi

Other place names in 99125

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

ZIP codes near 99125

ZIPCityDistance
99171 Saint John, WA 10.4 mi
99143 Lacrosse, WA 14.3 mi
99105 Benge, WA 15.4 mi
99111 Colfax, WA 15.8 mi
99017 Lamont, WA 16.7 mi
99176 Thornton, WA 18.2 mi
99174 Steptoe, WA 18.7 mi
99136 Hay, WA 22.0 mi
99149 Malden, WA 22.5 mi
99170 Rosalia, WA 26.0 mi

Find every ZIP code within 10 miles of 99125 →

Questions about this ZIP code

Where is ZIP code 99125?

99125 is in Endicott, Washington, in Whitman County, part of the Pullman, WA micropolitan area. Its published point location is 46.9614, -117.7473.

What county is 99125 in?

99125 lies in Whitman County.

What area code is 99125?

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

What time zone is 99125 in?

99125 uses America/Los_Angeles.

How many people live in 99125?

About 611 people live in ZIP code 99125, in 245 households, at 3.2 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 99125?

$52,569 a year, against $98,141 across Washington.

What ZIP codes are near 99125?

The closest are 99171 (10.4 mi), 99143 (14.3 mi), 99105 (15.4 mi), 99111 (15.8 mi) and 99017 (16.7 mi).

Is 99125 a PO Box ZIP code?

99125 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “99125 ZIP Code — Endicott, Washington (Whitman County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/99125

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