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ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2023

ZIP Codes for City of Walla Walla, WA

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Area Code(s):509
Timezone(s):Pacific (GMT -08:00)
City Population:31,731 (More Details)
CBSA:Walla Walla, WA
Congressional District(s):05
Land Area:1,270 square miles (county)
Water Area:29 square miles (county)

1 ZIP Code

Walla Walla, WA ZIP Code Boundaries

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Walla Walla, WA Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Walla Walla, WA Demographic Information *

Total population**31,731
Male population16,476
Female population15,255
Median age (years)34.4
White Population25,894
Black Population852
Indian Population407
Asian Population454
Hawaiian Population107
Hispanic Population6,970
Median age (Male)33.2
Median age (Female)36
Total households11,537
Family households (families)6,834
Average household size2.43
Average family size3.1
Total housing units12,514
* Demographic data is based on 2010 Census for the City of WALLA WALLA.
** City and ZIP Code Population will not be equal due to differences in their geographies.


  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],