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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Kennewick, WA

Kennewick, WA Covers 3 ZIP Codes

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 99336StandardBenton48,753509
ZIP Code 99337StandardBenton29,845509
ZIP Code 99338StandardBenton11,555509

Timezone(s):Pacific (GMT -08:00)
Counties:BENTON, WA
Population:73,917 (More Details)
Male Population:36,899
Female Population:37,018
Median Age:33
ZIP Codes:3
Area Codes:1
Total Area:1,760 square miles (county)
Land Area:1,700 square miles (county)
Water Area:60 square miles (county)

Kennewick, WA Demographic Information *

Total population73,917
Male population36,899
Female population37,018
Median age (years)32.6
White Population58,053
Black Population1,262
Indian Population627
Asian Population1,743
Hawaiian Population148
Hispanic Population17,909
Median age (Male)31.6
Median age (Female)33.6
Total households27,266
Family households (families)18,528
Average household size2.67
Average family size3.22
Total housing units28,507
* Demographic data is based on 2010 Census.

Kennewick, WA Other Information

  • Located in BENTON County, Washington
  • Kennewick, WA is also known as:
    • FINLEY, WA
    • KENN, WA
    • PASCO, WA

20 Cities within 30 miles of Kennewick, WA Products


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  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],