The Arnold, MD educational system consists of 5 public schools, 5 private schools and 1 post-secondary schools. Arnold public schools have average test scores of 60% which is 45% higher than than the Maryland average and 23% higher than than the national average. The student to teach ratio of Arnold public schools is 18:1, compared to 16:1 in Maryland and 16:1 across all of the United States. A total of 94.3% of students have completed 8th grade, 93.9% have completed high school, 52.2% have completed a bachelor’s degree and 7.2% have completed a doctorate degree.