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For the 2025-26 school year, there are 2 public middle schools serving 339 students in Castle Rock, WA.

The top ranked public middle school in Castle Rock, WA is Castle Rock Middle School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Castle Rock, WA public middle schools have an average math proficiency score of 16% (versus the Washington public middle school average of 37%), and reading proficiency score of 37% (versus the 51% statewide average). Middle schools in Castle Rock have an average ranking of 2/10, which is in the bottom 50% of Washington public middle schools.

Minority enrollment is 17% of the student body (majority Hispanic), which is less than the Washington public middle school average of 50% (majority Hispanic).