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For the 2026 school year, there are 2 public high schools serving 3,125 students in Duncan, SC.

The top-ranked public high schools in Duncan, SC are James Byrnes Freshman Academy and James F. Byrnes High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Duncan, SC public high schools have an average math proficiency score of 64% (versus the South Carolina public high school average of 53%), and reading proficiency score of 88% (versus the 77% statewide average). High schools in Duncan have an average ranking of 8/10, which is in the top 30% of South Carolina public high schools.

Duncan, SC public high school have a Graduation Rate of 86%, which is more than the South Carolina average of 84%.

The school with highest graduation rate is James F. Byrnes High School, with 86% graduation rate. Read more about public school graduation rate statistics in South Carolina or national school graduation rate statistics.

Minority enrollment is 47% of the student body (majority Black), which is less than the South Carolina public high school average of 52% (majority Black).