Highest salary at Chester Cusd 139 in year 2017 was $120,760. Number of employees at Chester Cusd 139 in year 2017 was 77. Average annual salary was $45,313 and median salary was $51,978. Chester Cusd 139 average salary is 3 percent lower than USA average and median salary is 20 percent higher than USA median salary. From 2016 to 2017, the median salary increased 1.8 percent.