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For the 2025-26 school year, there are 12 public high schools serving 4,637 students in Herkimer County, NY.

The top ranked public high schools in Herkimer County, NY are Central Valley Academy, Mount Markham Senior High School and Frankfort-schuyler Central High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Herkimer County, NY public high schools have an average math proficiency score of 44% (versus the New York public high school average of 55%), and reading proficiency score of 48% (versus the 59% statewide average). High schools in Herkimer County have an average ranking of 1/10, which is in the bottom 50% of New York public high schools.

Herkimer County, NY public high school have a Graduation Rate of 88%, which is less than the New York average of 89%.

The school with highest graduation rate is Mount Markham Senior High School, with ≥95% graduation rate. Read more about public school graduation rate statistics in New York or national school graduation rate statistics.

Minority enrollment is 22% of the student body (majority Hispanic and Black), which is less than the New York public high school average of 61% (majority Hispanic).