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For the 2026 school year, there are 2 public schools serving 228 students in Cosmopolis, WA.

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

Cosmopolis, WA public schools have an average math proficiency score of 40% (versus the Washington public school average of 41%), and reading proficiency score of 49% (versus the 53% statewide average). Schools in Cosmopolis have an average ranking of 6/10, which is in the top 50% of Washington public schools.

Minority enrollment is 29% of the student body (majority Hispanic), which is less than the Washington public school average of 52% (majority Hispanic).