ZIP code · Prosser · Washington · United States

ZIP code 99350 — Prosser

Name: Prosser (99350)
Address: Washington, 99350, US

ZIP code 99350 serves Prosser, Washington.

Postal code: 99350
Single source Value from one source, not cross-checked.
City: Prosser
County: Benton
State: Washington
Country: United States
Coordinates: 46.2232, -119.7710 — precision precise (locality)
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Nearby localities

98930Grandview · 12 km
98935Mabton · 19 km
98944Sunnyside · 22 km
99320Benton City · 22 km
99345Paterson · 26 km
98938Outlook · 29 km
99353West Richland · 32 km
98932Granger · 34 km
99352Richland · 37 km
99354Richland · 37 km

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames. Data generated on 2026-08-21. Methodology · Report an error on this page