Highest salary at Grayslake Sd 46 in year 2018 was $105,820. Number of employees at Grayslake Sd 46 in year 2018 was 240. Average annual salary was $25,127 and median salary was $21,512. Grayslake Sd 46 average salary is 46 percent lower than USA average and median salary is 51 percent lower than USA median salary.