Highest salary at Killeen Isd in year 2016 was $248,700. Number of employees at Killeen Isd in year 2016 was 6,325. Average annual salary was $37,441 and median salary was $45,200. Killeen Isd average salary is 20 percent lower than USA average and median salary is 4 percent higher than USA median salary. From 2015 to 2016, the average salary of employees at this employer increased 3.8 percent, the median salary increased 2.5 percent.