Highest salary at Nassau in year 2011 was $262,343. Number of employees at Nassau in year 2011 was 9,800. Average annual salary was $84,404 and median salary was $74,472. Nassau average salary is 80 percent higher than USA average and median salary is 71 percent higher than USA median salary. From 2010 to 2011, the average salary of employees at this employer increased 8.1 percent, the median salary increased 5.8 percent.