Highest salary at Butler County in year 2017 was $83,675. Number of employees at Butler County in year 2017 was 16. Average annual salary was $48,003 and median salary was $43,857. Butler County average salary is 2 percent higher than USA average and median salary is 1 percent higher than USA median salary. From 2016 to 2017, the average salary of employees at this employer increased 1.7 percent, the median salary increased 2.0 percent.