Highest salary at Oswego in year 2013 was $141,665. Number of employees at Oswego in year 2013 was 1,397. Average annual salary was $41,681 and median salary was $42,041. Oswego average salary is 11 percent lower than USA average and median salary is 3 percent lower than USA median salary. From 2012 to 2013, the median salary increased 0.4 percent.