The Barnwell, SC educational system consists of 4 public schools, 1 private schools and n/a post-secondary schools. Barnwell public schools have average test scores of 43% which is 8% lower than than the South Carolina average and 13% lower than than the national average. The student to teach ratio of Barnwell public schools is 16:1, compared to 16:1 in South Carolina and 16:1 across all of the United States. A total of 80.3% of students have completed 8th grade, 79.9% have completed high school, 14.2% have completed a bachelor’s degree and 2.5% have completed a doctorate degree.