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ZIP Code Database - Facts & Stats

Data Last Updated: December 1, 2022

ZIP Codes for City of Maple Valley, WA

Maple Valley, WA Covers 1 ZIP Code

ZIP CodeTypeCountyPopulation
ZIP Code 98038StandardKing31,171

Timezone(s):Pacific (GMT -08:00)
Counties:KING, WA
Population:22,684 (More Details)
Male Population:11,215
Female Population:11,469
Median Age:34
ZIP Codes:1
Area Codes:1
Total Area:2,307 square miles (county)
Land Area:2,115 square miles (county)
Water Area:191 square miles (county)

Maple Valley, WA Demographic Information *

Total population22,684
Male population11,215
Female population11,469
Median age (years)34.2
White Population19,465
Black Population471
Indian Population111
Asian Population1,013
Hawaiian Population91
Hispanic Population1,293
Median age (Male)33.5
Median age (Female)34.7
Total households7,679
Family households (families)6,159
Average household size2.95
Average family size3.3
Total housing units7,997
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 12/1/2022],
  2. Internal Data Creation [Last Updated: 12/1/2022],
  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],