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Where 99163 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 99163 into a pocket calculator and turn it upside down: EgIGG — not quite a word, sorry.
- ➕ As a number, 99,163 = 53 × 1871. Its digits add up to 28, a total 1,520 other ZIP codes share.
- 💾In binary, the way a computer stores it:
11000001101011011 - 🏠 Its numerical neighbours: 99161 (Palouse, WA, 12 mi away) and 99164 (Pullman, WA, 2 mi away).
- 🔄 Backwards, 99163 becomes 36199, which is not a ZIP code at all.
- 👥 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, 5,915 miles away.
- 🧭 Farther north than 95% of all ZIP codes, and farther west than 90%.
- 🎯1,048 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 99163 and you would come out at 46.73°S, 62.78°E — 388 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 32m.
- 📏 At 210.7 square miles of land, 99163 is bigger than 91% of ZIP codes — room for about 160 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 34,022This ZIP34,022 |
|---|---|
| Households | 13,270This ZIP13,270 |
| Housing units | 15,858This ZIP15,858 |
| Median age | 23.4This ZIP23.4Washington38.3US 38.9 |
| Median household income | $48,231This ZIP$48,231Washington$98,141US $80,734 |
| Median home value | $435,900This ZIP$435,900Washington$564,600US $332,700 |
| Median gross rent | $1,062This ZIP$1,062Washington$1,760US $1,413 |
| Bachelor's degree or higher | 61.3%This ZIP61.3% |
| Mean commute | 14.5 minThis ZIP14.5 min |
| Population density | 161.5 / sq miThis ZIP161.5 / sq mi |
Business and tax activity
| Business establishments | 557This ZIP557 |
|---|---|
| Employees | 9,244This ZIP9,244 |
| Annual payroll | $519,377,000This ZIP$519,377,000 |
| Tax returns filed | 11,420This ZIP11,420 |
| Total adjusted gross income | $850,323,000This ZIP$850,323,000 |
Land area
| Land area | 210.71 sq miThis ZIP210.71 sq mi |
|---|---|
| Water area | 0.41 sq miThis ZIP0.41 sq mi |
Other place names in 99163
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 99163
| ZIP | City | Distance |
|---|---|---|
99164 | Pullman, WA | 1.8 mi |
99102 | Albion, WA | 4.5 mi |
83844 | Moscow, ID | 9.4 mi |
99113 | Colton, WA | 10.1 mi |
99161 | Palouse, WA | 12.4 mi |
83843 | Moscow, ID | 13.2 mi |
99111 | Colfax, WA | 14.0 mi |
83872 | Viola, ID | 14.3 mi |
99179 | Uniontown, WA | 16.8 mi |
99130 | Garfield, WA | 18.6 mi |
Find every ZIP code within 10 miles of 99163 →
Questions about this ZIP code
Where is ZIP code 99163?
99163 is in Pullman, Washington, in Whitman County, part of the Pullman, WA micropolitan area. Its published point location is 46.7304, -117.2184.
What county is 99163 in?
99163 lies in Whitman County.
What area code is 99163?
Pullman uses area code 509, from NANPA's telephone records.
What time zone is 99163 in?
99163 uses America/Los_Angeles.
How many people live in 99163?
About 34,022 people live in ZIP code 99163, in 13,270 households, at 161.5 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 99163?
$48,231 a year, against $98,141 across Washington.
What ZIP codes are near 99163?
The closest are 99164 (1.8 mi), 99102 (4.5 mi), 83844 (9.4 mi), 99113 (10.1 mi) and 99161 (12.4 mi).
Is 99163 a PO Box ZIP code?
99163 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “99163 ZIP Code — Pullman, Washington (Whitman County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/99163
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/99163.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.