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ZIP Code Database - Facts & Stats

Data Last Updated: February 1, 2023

ZIP Codes for City of Prosser, WA

Prosser, WA Covers 1 ZIP Code

ZIP CodeTypeCountyPopulation
ZIP Code 99350StandardBenton12,979

Timezone(s):Pacific (GMT -08:00)
Counties:BENTON, WA
Population:5,714 (More Details)
Male Population:2,725
Female Population:2,989
Median Age:33
ZIP Codes:1
Area Codes:1
Total Area:1,760 square miles (county)
Land Area:1,700 square miles (county)
Water Area:60 square miles (county)

Prosser, WA Demographic Information *

Total population5,714
Male population2,725
Female population2,989
Median age (years)32.8
White Population4,346
Black Population30
Indian Population30
Asian Population116
Hawaiian Population6
Hispanic Population2,123
Median age (Male)31.2
Median age (Female)34.3
Total households2,023
Family households (families)1,396
Average household size2.8
Average family size3.42
Total housing units2,129
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 2/1/2023],
  2. Internal Data Creation [Last Updated: 2/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],