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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Richland, WA

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Counties:BENTON, WA
Area Code(s):509
Timezone(s):Pacific (GMT -08:00)
City Population:48,058 (More Details)
CBSA:Kennewick-Richland, WA
Congressional District(s):04
Land Area:1,700 square miles (county)
Water Area:60 square miles (county)

3 ZIP Codes

Richland, WA ZIP Code Boundaries

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Richland, WA Covers 3 ZIP Codes

ZIP CodeTypePopulation% of PopulationAliases
99352Standard26,97543.77%HANFORD WORKS, WEST RICHLAND

Richland, WA Demographic Information *

Total population**48,058
Male population23,551
Female population24,507
Median age (years)39.4
White Population41,834
Black Population672
Indian Population391
Asian Population2,273
Hawaiian Population52
Hispanic Population3,728
Median age (Male)38.2
Median age (Female)40.3
Total households19,707
Family households (families)12,974
Average household size2.42
Average family size2.97
Total housing units20,876
* Demographic data is based on 2010 Census for the City of RICHLAND.
** 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],