Home > WA > Benton County > Prosser > Zip 99350

Zip Code 99350 — Prosser, WA

99350 is a ZIP Code associated with Prosser, WA, located within Benton. The postal region supports an estimated population of 14,837 residents across Data Pending housing units, with a population density of 9.5 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (46.144770, -119.709440)

Data MetricLocal Statistic
Postal / Zip Code99350
Primary CityProsser
State / ProvinceWA
CountyBenton
Total Population14,837
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density9.5 people/sq mi
TimezoneAmerica/Los_Angeles

How 99350 Compares

MetricZIP 99350Benton CountyWA State Average
Population14,837234,7887,816,021
Median IncomeData PendingN/AN/A
Population Density9.5 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 98930Grandview12.4 mi15,730N/A
Zip 99345Paterson14.6 mi162N/A
Zip 99320Benton City15.4 mi9,879N/A
Zip 98935Mabton17.2 mi4,289N/A
Zip 99353West Richland19.8 mi19,251N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →