Highest City Of St Robert employee salary in year 2017 was $79,193. City Of St Robert employees number in year 2017 was 87. City Of St Robert average salary was $33,256 and median salary was $32,914. According to the last payroll, City Of St Robert average salary is 56 percent lower than USA average and 36 percent lower than Missouri state average. City Of St Robert employee salaries are usually between $21,770 and $40,261. Top 10% of highest-earning employees have salaries ranging from $55,919 to $79,193.