99136
ZIP 99136 is Hay, Washington, in Whitman County; area code 509; Pacific time.
- Type
- Standard
- Time zone
- America/Los_Angeles
- County
- Whitman
- Metro area
- Pullman, WA
- Population
- 14
- Coordinates
- 46.6747, -117.9489
Weather right now
Asking the National Weather Service…
Where 99136 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.
- 🔢 Type 99136 into a pocket calculator and turn it upside down: gEIGG — not quite a word, sorry.
- ➕ As a number, 99,136 = 2 × 2 × 2 × 2 × 2 × 2 × 1549. Its digits add up to 28, a total 1,520 other ZIP codes share.
- 💾In binary, the way a computer stores it:
11000001101000000 - 🏠 Its numerical neighbours: 99135 (Hartline, WA, 87 mi away) and 99137 (Hunters, WA, 102 mi away).
- 🔄 Backwards, 99136 becomes 63199 — and that is a real ZIP code: Saint Louis, MO, 1,503 miles away.
- 👥 19 other ZIP codes are made of exactly the same digits (13699, 16939, 19369, 19936, 19963, 31699, …). The farthest-flung twin is 96931 in Tamuning, GU, 5,883 miles away.
- 🧭 Farther north than 95% of all ZIP codes, and farther west than 91%.
- 🎯1,080 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 99136 and you would come out at 46.67°S, 62.05°E — 420 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 51m of daylight. Shortest: 8h 33m.
- 📏 At 17.4 square miles of land, 99136 is bigger than 35% of ZIP codes — room for about 13 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 14This ZIP14 |
|---|---|
| Households | 11This ZIP11 |
| Housing units | 20This ZIP20 |
| Median age | 82.2This ZIP82.2Washington38.3US 38.9 |
| Median household income | $87,708This ZIP$87,708Washington$98,141US $80,734 |
| Bachelor's degree or higher | 0.0% |
| Population density | 0.8 / sq miThis ZIP0.8 / sq mi |
Land area
| Land area | 17.39 sq miThis ZIP17.39 sq mi |
|---|---|
| Water area | 0.00 sq mi |
ZIP codes near 99136
| ZIP | City | Distance |
|---|---|---|
99143 | Lacrosse, WA | 7.9 mi |
99333 | Hooper, WA | 9.2 mi |
99359 | Starbuck, WA | 15.1 mi |
99371 | Washtucna, WA | 19.7 mi |
99105 | Benge, WA | 20.4 mi |
99125 | Endicott, WA | 22.0 mi |
99335 | Kahlotus, WA | 23.4 mi |
99347 | Pomeroy, WA | 24.9 mi |
99111 | Colfax, WA | 26.7 mi |
99328 | Dayton, WA | 27.8 mi |
Find every ZIP code within 10 miles of 99136 →
Questions about this ZIP code
Where is ZIP code 99136?
99136 is in Hay, Washington, in Whitman County, part of the Pullman, WA micropolitan area. Its published point location is 46.6747, -117.9489.
What county is 99136 in?
99136 lies in Whitman County.
What area code is 99136?
Hay uses area code 509, from NANPA's telephone records.
What time zone is 99136 in?
99136 uses America/Los_Angeles.
How many people live in 99136?
About 14 people live in ZIP code 99136, in 11 households, at 0.8 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 99136?
$87,708 a year, against $98,141 across Washington.
What ZIP codes are near 99136?
The closest are 99143 (7.9 mi), 99333 (9.2 mi), 99359 (15.1 mi), 99371 (19.7 mi) and 99105 (20.4 mi).
Is 99136 a PO Box ZIP code?
99136 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “99136 ZIP Code — Hay, Washington (Whitman County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/99136
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/99136.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.