Highest salary at Henderson Isd in year 2017 was $162,211. Number of employees at Henderson Isd in year 2017 was 504. Average annual salary was $37,135 and median salary was $38,090. Henderson Isd average salary is 21 percent lower than USA average and median salary is 12 percent lower than USA median salary. From 2016 to 2017, the average salary of employees at this employer increased 1.0 percent, the median salary increased 2.4 percent.