Best Cosmopolis Public Middle Schools (2026)

For the 2026 school year, there is 1 public middle school serving 61 students in Cosmopolis, WA.

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

Cosmopolis, WA public middle school have an average math proficiency score of 34% (versus the Washington public middle school average of 37%), and reading proficiency score of 45% (versus the 51% statewide average). Middle schools in Cosmopolis have an average ranking of 5/10, which is in the bottom 50% of Washington public middle schools.

Minority enrollment is 31% of the student body (majority Hispanic), which is less than the Washington public middle school average of 50% (majority Hispanic).