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ZIP Code Database - Facts & Stats

Data Last Updated: October 1, 2021

ZIP Codes for City of Union, WA

Union, WA Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 98592StandardMason1,764360 / 564

Timezone(s):Pacific (GMT -08:00)
Counties:MASON, WA
Population:631 (More Details)
Male Population:314
Female Population:317
Median Age:56
ZIP Codes:1
Area Codes:2
Total Area:1,051 square miles (county)
Land Area:959 square miles (county)
Water Area:92 square miles (county)

Union, WA Demographic Information *

Total population631
Male population314
Female population317
Median age (years)55.5
White Population563
Black Population2
Indian Population22
Asian Population8
Hawaiian Population0
Hispanic Population16
Median age (Male)55.7
Median age (Female)55.5
Total households294
Family households (families)188
Average household size2.15
Average family size2.61
Total housing units412
* Demographic data is based on 2010 Census.

Union, WA Other Information

58 Cities within 30 miles of Union, WA Products


  1. U.S. Postal Service [Last Updated: 10/1/2021],
  2. Internal Data Creation [Last Updated: 10/1/2021],
  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],