Highest salary at Mercedes Isd in year 2016 was $200,660. Number of employees at Mercedes Isd in year 2016 was 918. Average annual salary was $39,889 and median salary was $44,760. Mercedes Isd average salary is 15 percent lower than USA average and median salary is 3 percent higher than USA median salary. From 2015 to 2016, the average salary of employees at this employer increased 5.4 percent, the median salary increased 2.9 percent.