Highest salary at Alton Cu Sd 11 in year 2017 was $101,549. Number of employees at Alton Cu Sd 11 in year 2017 was 372. Average annual salary was $17,604 and median salary was $14,792. Alton Cu Sd 11 average salary is 62 percent lower than USA average and median salary is 66 percent lower than USA median salary.