Highest salary at Nassau in year 2022 was $349,649. Number of employees at Nassau in year 2022 was 8,187. Average annual salary was $96,239 and median salary was $84,136. Nassau average salary is 105 percent higher than USA average and median salary is 93 percent higher than USA median salary. From 2021 to 2022, the average salary of employees at this employer increased 2.1 percent, the median salary increased 0.9 percent.