Highest salary at Henderson Isd in year 2016 was $160,605. Number of employees at Henderson Isd in year 2016 was 496. Average annual salary was $36,785 and median salary was $37,214. Henderson Isd average salary is 22 percent lower than USA average and median salary is 14 percent lower than USA median salary. From 2015 to 2016, the average salary of employees at this employer increased 3.1 percent, the median salary increased 0.6 percent.