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For the 2026 school year, there is 1 public high school serving 384 students in Sinclairville, NY.

The top-ranked public high school in Sinclairville, NY is Cassadaga Valley Middle/high School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Sinclairville, NY public high school have an average math proficiency score of 32% (versus the New York public high school average of 55%), and reading proficiency score of 57% (versus the 59% statewide average). High schools in Sinclairville have an average ranking of 2/10, which is in the bottom 50% of New York public high schools.

Sinclairville, NY public high school have a Graduation Rate of 92%, which is more than the New York average of 89%.

The school with highest graduation rate is Cassadaga Valley Middle/high School, with 90-94% graduation rate. Read more about public school graduation rate statistics in New York or national school graduation rate statistics.

Minority enrollment is 7% of the student body (majority Hispanic), which is less than the New York public high school average of 61% (majority Hispanic).