Assistant Principal - High School salary at Fairfax County Public Schools

The average assistant principal - high school salary at Fairfax County Public Schools was $139,834 , which is 2 percent higher than the average salary for this job in Virginia, and 35 percent higher than the national average for this job . Assistant Principal - High School salaries at Fairfax County Public Schools typically range from $132,190 to $153,388 (25th to 75th percentile). The highest reported assistant principal - high school salary was $154,756. There are 130 employees at Fairfax County Public Schools with the job title assistant principal - high school.