ZIP Code 98611

ZIP Code 98611 covers part of Castle Rock in Washington, providing postal services for local homes and businesses. This ZIP Code may also include nearby neighborhoods or rural areas and is associated with one or more area codes.

  • Zip Code: 98611
  • Type: Standard
  • Official USPS city name: Castle Rock
  • Official USPS State Code: WA
  • Official State Name: Washington
  • ZCTA: TRUE
  • Population: 9421.0
  • Density: 29.1
  • Primary Official County Code: 53015
  • Primary Official County Name: Cowlitz
  • Official County Name: Cowlitz
  • Official County Code: 53015
  • Imprecise: FALSE
  • Military: FALSE
  • Timezone: America/Los_Angeles (03:58 AM Tuesday, April 29 2025-04-29 (GMT -0700))
  • Geo Point: 46.30812, -122.89524


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