Highest salary at Seneca in year 2012 was $124,408. Number of employees at Seneca in year 2012 was 444. Average annual salary was $40,064 and median salary was $41,029. Seneca average salary is 15 percent lower than USA average and median salary is 6 percent lower than USA median salary. From 2011 to 2012, the average salary of employees at this employer increased 6.8 percent, the median salary increased 5.4 percent.