Highest salary at Pettis Co. Elem. in year 2017 was $97,740. Number of employees at Pettis Co. Elem. in year 2017 was 23. Average annual salary was $37,169 and median salary was $33,539. Pettis Co. Elem. average salary is 21 percent lower than USA average and median salary is 23 percent lower than USA median salary.