Highest salary at Wentzville R-iv in year 2016 was $185,000. Number of employees at Wentzville R-iv in year 2016 was 76. Average annual salary was $55,174 and median salary was $57,759. Wentzville R-iv average salary is 18 percent higher than USA average and median salary is 33 percent higher than USA median salary. From 2015 to 2016, the average salary of employees at this employer increased 1.0 percent, the median salary increased 2.0 percent.