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For the 2025-26 school year, there are 5 public high schools serving 4,353 students in Sumter County, SC.

The top ranked public high schools in Sumter County, SC are Crestwood High School, Sumter High School and Lakewood High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Sumter County, SC public high schools have an average math proficiency score of 27% (versus the South Carolina public high school average of 53%), and reading proficiency score of 74% (versus the 77% statewide average). High schools in Sumter County have an average ranking of 2/10, which is in the bottom 50% of South Carolina public high schools.

Sumter County, SC public high school have a Graduation Rate of 77%, which is less than the South Carolina average of 84%.

The school with highest graduation rate is Crestwood 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 75% of the student body (majority Black), which is more than the South Carolina public high school average of 52% (majority Black).