Highest salary at Cahokia Sd 187 in year 2018 was $198,861. Number of employees at Cahokia Sd 187 in year 2018 was 260. Average annual salary was $34,177 and median salary was $33,653. Cahokia Sd 187 average salary is 27 percent lower than USA average and median salary is 23 percent lower than USA median salary. From 2017 to 2018, the average salary of employees at this employer increased 7.1 percent, the median salary increased 5.2 percent.