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Where 99359 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 99359 into a pocket calculator and turn it upside down: GSEGG — not quite a word, sorry.
- ➕ As a number, 99,359 = 13 × 7643. Its digits add up to 35, a total 212 other ZIP codes share.
- 💾In binary, the way a computer stores it:
11000010000011111 - 🏠 Its numerical neighbours: 99357 (Royal City, WA, 76 mi away) and 99360 (Touchet, WA, 38 mi away).
- 🔄 Backwards, 99359 becomes 95399, which is not a ZIP code at all.
- 👥 3 other ZIP codes are made of exactly the same digits (93599, 95939, 95993). The farthest-flung twin is 93599 in Palmdale, CA, 825 miles away.
- 🧭 Farther north than 94% of all ZIP codes, and farther west than 91%.
- 🎯1,086 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 99359 and you would come out at 46.51°S, 61.84°E — 434 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 50m of daylight. Shortest: 8h 34m.
- 📏 At 42.4 square miles of land, 99359 is bigger than 55% of ZIP codes — room for about 32 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 94This ZIP94 |
|---|---|
| Households | 68This ZIP68 |
| Housing units | 82This ZIP82 |
| Median age | 59.9This ZIP59.9Washington38.3US 38.9 |
| Median household income | $61,000This ZIP$61,000Washington$98,141US $80,734 |
| Median home value | $135,400This ZIP$135,400Washington$564,600US $332,700 |
| Bachelor's degree or higher | 2.1%This ZIP2.1% |
| Mean commute | 52.2 minThis ZIP52.2 min |
| Population density | 2.2 / sq miThis ZIP2.2 / sq mi |
Business and tax activity
| Business establishments | 4This ZIP4 |
|---|---|
| Employees | 15This ZIP15 |
| Annual payroll | $1,109,000This ZIP$1,109,000 |
Land area
| Land area | 42.37 sq miThis ZIP42.37 sq mi |
|---|---|
| Water area | 1.37 sq miThis ZIP1.37 sq mi |
Other place names in 99359
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 99359
| ZIP | City | Distance |
|---|---|---|
99333 | Hooper, WA | 12.8 mi |
99136 | Hay, WA | 15.1 mi |
99348 | Prescott, WA | 15.1 mi |
99335 | Kahlotus, WA | 16.1 mi |
99361 | Waitsburg, WA | 19.1 mi |
99371 | Washtucna, WA | 20.5 mi |
99328 | Dayton, WA | 21.5 mi |
99143 | Lacrosse, WA | 22.9 mi |
99329 | Dixie, WA | 25.8 mi |
99347 | Pomeroy, WA | 28.6 mi |
Find every ZIP code within 10 miles of 99359 →
Questions about this ZIP code
Where is ZIP code 99359?
99359 is in Starbuck, Washington, in Columbia County. Its published point location is 46.5130, -118.1619.
What county is 99359 in?
99359 lies in Columbia County.
What area code is 99359?
Starbuck uses area code 509, from NANPA's telephone records.
What time zone is 99359 in?
99359 uses America/Los_Angeles.
How many people live in 99359?
About 94 people live in ZIP code 99359, in 68 households, at 2.2 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 99359?
$61,000 a year, against $98,141 across Washington.
What ZIP codes are near 99359?
The closest are 99333 (12.8 mi), 99136 (15.1 mi), 99348 (15.1 mi), 99335 (16.1 mi) and 99361 (19.1 mi).
Is 99359 a PO Box ZIP code?
99359 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “99359 ZIP Code — Starbuck, Washington (Columbia County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/99359
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/99359.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.