Highest salary at Decatur Isd in year 2017 was $193,090. Number of employees at Decatur Isd in year 2017 was 433. Average annual salary was $43,121 and median salary was $48,300. Decatur Isd average salary is 8 percent lower than USA average and median salary is 11 percent higher than USA median salary. From 2016 to 2017, the average salary of employees at this employer increased 7.8 percent, the median salary increased 4.7 percent.