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ZIP code 98611

Castle Rock, WA · Cowlitz County

About ZIP code 98611

  • ZIP code 98611 is in Castle Rock, Cowlitz County, Washington.
  • About 9,302 people live in it, which is 26.4 people per square mile.
  • Time zone: Pacific Standard Time.
  • The middle of the ZIP code is at 46.306, -122.905.

A ZIP code is a mail delivery area, not a town border, and one ZIP code can cover parts of several towns. To check a single address, use the US Postal Service lookup.

Castle Rock, WA

ZIP code 98611 is the post office name for Castle Rock, WA. 2,217 people live in Castle Rock. Typical household income is $69,639. A typical home costs $348,600.

  • Stronger than most towns on: Safety, Airport access and Walkability.
  • Weaker than most towns on: Clean air and low disaster risk, Housing affordability and Pleasant weather for being outdoors.

See all figures for Castle Rock

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ZIP code list from SimpleMaps US Zips. Population is a US Census Bureau estimate. These are estimates, so check official sources before you decide.