Highest salary at East Alton Sd 13 in year 2017 was $172,780. Number of employees at East Alton Sd 13 in year 2017 was 135. Average annual salary was $38,609 and median salary was $42,247. East Alton Sd 13 average salary is 18 percent lower than USA average and median salary is 3 percent lower than USA median salary. From 2016 to 2017, the median salary increased 0.9 percent.