Highest salary at Grasslake Sd 36 in year 2016 was $43,581. Number of employees at Grasslake Sd 36 in year 2016 was 18. Average annual salary was $18,072 and median salary was $13,173. Grasslake Sd 36 average salary is 61 percent lower than USA average and median salary is 70 percent lower than USA median salary.