Highest salary at Liberty Isd in year 2016 was $129,500. Number of employees at Liberty Isd in year 2016 was 385. Average annual salary was $37,047 and median salary was $43,125. Liberty Isd average salary is 21 percent lower than USA average and median salary is 1 percent lower than USA median salary. From 2015 to 2016, the average salary of employees at this employer increased 3.7 percent, the median salary increased 5.3 percent.