Highest salary at SAU 21 in year 2020 was $155,000. Number of employees at SAU 21 in year 2020 was 16. Average annual salary was $74,834 and median salary was $66,161. SAU 21 average salary is 60 percent higher than USA average and median salary is 52 percent higher than USA median salary. From 2019 to 2020, the average salary of employees at this employer increased 42.8 percent, the median salary increased 24.0 percent.