Highest salary at County of Cass in year 2018 was $151,250. Number of employees at County of Cass in year 2018 was 251. Average annual salary was $36,451 and median salary was $41,596. County of Cass average salary is 22 percent lower than USA average and median salary is 4 percent lower than USA median salary. From 2017 to 2018, the average salary of employees at this employer increased 0.3 percent, the median salary increased 0.3 percent.