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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Castle Rock, WA

Castle Rock, WA Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 98611StandardCowlitz9,133360 / 564

Timezone(s):Pacific (GMT -08:00)
Counties:COWLITZ, WA
Population:1,982 (More Details)
Male Population:941
Female Population:1,041
Median Age:39
ZIP Codes:1
Area Codes:2
Total Area:1,166 square miles (county)
Land Area:1,140 square miles (county)
Water Area:26 square miles (county)

Castle Rock, WA Demographic Information *

Total population1,982
Male population941
Female population1,041
Median age (years)39.3
White Population1,812
Black Population2
Indian Population44
Asian Population4
Hawaiian Population8
Hispanic Population97
Median age (Male)37.3
Median age (Female)40.5
Total households784
Family households (families)519
Average household size2.53
Average family size3.06
Total housing units863
* Demographic data is based on 2010 Census.

Castle Rock, WA Other Information

38 Cities within 30 miles of Castle Rock, WA Products


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  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],