Highest salary at Seneca in year 2010 was $93,259. Number of employees at Seneca in year 2010 was 435. Average annual salary was $36,254 and median salary was $37,288. Seneca average salary is 23 percent lower than USA average and median salary is 14 percent lower than USA median salary. From 2009 to 2010, the average salary of employees at this employer increased 1.0 percent, the median salary increased 0.4 percent.