Highest salary at Parsons in year 2018 was $100,349. Number of employees at Parsons in year 2018 was 128. Average annual salary was $55,267 and median salary was $53,852. Parsons average salary is 18 percent higher than USA average and median salary is 24 percent higher than USA median salary. From 2017 to 2018, the average salary of employees at this employer increased 4.2 percent, the median salary increased 3.0 percent.