Highest salary at Essex in year 2014 was $149,132. Number of employees at Essex in year 2014 was 577. Average annual salary was $38,365 and median salary was $37,466. Essex average salary is 18 percent lower than USA average and median salary is 14 percent lower than USA median salary. From 2013 to 2014, the average salary of employees at this employer increased 2.1 percent, the median salary increased 0.8 percent.