Highest salary at Derby in year 2018 was $179,080. Number of employees at Derby in year 2018 was 515. Average annual salary was $58,159 and median salary was $56,407. Derby average salary is 24 percent higher than USA average and median salary is 30 percent higher than USA median salary. From 2017 to 2018, the average salary of employees at this employer increased 3.5 percent, the median salary increased 2.9 percent.