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ZIP Code Database - Facts & Stats

Data Last Updated: February 1, 2023

ZIP Codes for City of Royal City, WA

Royal City, WA Covers 1 ZIP Code

ZIP CodeTypeCountyPopulation
ZIP Code 99357StandardGrant4,323

Timezone(s):Pacific (GMT -08:00)
Counties:GRANT, WA
Population:2,140 (More Details)
Male Population:1,141
Female Population:999
Median Age:22
ZIP Codes:1
Area Codes:1
Total Area:2,791 square miles (county)
Land Area:2,679 square miles (county)
Water Area:112 square miles (county)

Royal City, WA Demographic Information *

Total population2,140
Male population1,141
Female population999
Median age (years)22.4
White Population977
Black Population26
Indian Population17
Asian Population19
Hawaiian Population0
Hispanic Population1,899
Median age (Male)23.1
Median age (Female)21.4
Total households486
Family households (families)439
Average household size4.26
Average family size4.2
Total housing units494
* Demographic data is based on 2010 Census. Products


  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],