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zipcodes.pro — ZIP/99350

99350

ZIP 99350 is Prosser, Washington, mostly in Benton County; area code 509; Pacific time.

Type
Standard
Time zone
America/Los_Angeles
County
Benton +2 more
Population
14,837
Coordinates
46.1425, -119.7368
☼ Live from 99350 — Prosser, WA

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Local time: —

Where 99350 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 99350
  • 🔢 Type 99350 into a pocket calculator and turn it upside down: OSEGG — not quite a word, sorry.
  • ➕ As a number, 99,350 = 2 × 5 × 5 × 1987. Its digits add up to 26, a total 2,038 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11000010000010110
  • 🏠 Its numerical neighbours: 99349 (Mattawa, WA, 41 mi away) and 99352 (Richland, WA, 22 mi away).
  • 🔄 Backwards, 99350 becomes 05399, which is not a ZIP code at all.
  • 👥 19 other ZIP codes are made of exactly the same digits (09359, 09593, 30599, 35990, 39059, 39095, …). The farthest-flung twin is 09359 in APO AE, a military post office, 5,200 miles away.
  • 🧭 Farther north than 94% of all ZIP codes, and farther west than 93%.
  • 🎯1,150 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 99350 and you would come out at 46.14°S, 60.26°E — 512 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 46m of daylight. Shortest: 8h 37m.
  • 📏 At 600.1 square miles of land, 99350 is bigger than 98% of ZIP codes — room for about 456 Central Parks.
🌙 The sky over 99350 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population14,837This ZIP14,837
Households4,676This ZIP4,676
Housing units5,059This ZIP5,059
Median age32.9This ZIP32.9Washington38.3US 38.9
Median household income$81,014This ZIP$81,014Washington$98,141US $80,734
Median home value$338,500This ZIP$338,500Washington$564,600US $332,700
Median gross rent$983This ZIP$983Washington$1,760US $1,413
Bachelor's degree or higher21.5%This ZIP21.5%
Mean commute22.4 minThis ZIP22.4 min
Population density24.7 / sq miThis ZIP24.7 / sq mi

Business and tax activity

Business establishments266This ZIP266
Employees3,100This ZIP3,100
Annual payroll$177,912,000This ZIP$177,912,000
Tax returns filed6,010This ZIP6,010
Total adjusted gross income$452,475,000This ZIP$452,475,000

Land area

Land area600.07 sq miThis ZIP600.07 sq mi
Water area1.69 sq miThis ZIP1.69 sq mi

Counties 99350 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Benton County 86.6%
Klickitat County 12.6%
Yakima County 0.8%

Other place names in 99350

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

ZIP codes near 99350

ZIPCityDistance
98930 Grandview, WA 11.5 mi
99345 Paterson, WA 15.0 mi
98935 Mabton, WA 16.1 mi
99320 Benton City, WA 16.7 mi
97844 Irrigon, OR 20.0 mi
99353 West Richland, WA 20.5 mi
99346 Plymouth, WA 22.2 mi
99338 Kennewick, WA 22.3 mi
99352 Richland, WA 22.5 mi
98932 Granger, WA 24.0 mi

Find every ZIP code within 10 miles of 99350 →

Questions about this ZIP code

Where is ZIP code 99350?

99350 is in Prosser, Washington, in Benton County, part of the Kennewick-Richland, WA metropolitan area. Its published point location is 46.1425, -119.7368.

What county is 99350 in?

99350 spans 3 counties: Benton County, Klickitat County and Yakima County. Most of it falls in Benton County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 99350?

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

What time zone is 99350 in?

99350 uses America/Los_Angeles.

How many people live in 99350?

About 14,837 people live in ZIP code 99350, in 4,676 households, at 24.7 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 99350?

$81,014 a year, against $98,141 across Washington.

What ZIP codes are near 99350?

The closest are 98930 (11.5 mi), 99345 (15 mi), 98935 (16.1 mi), 99320 (16.7 mi) and 97844 (20 mi).

Is 99350 a PO Box ZIP code?

99350 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “99350 ZIP Code — Prosser, Washington (Benton County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/99350

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