Highest salary at Butler County in year 2022 was $148,549. Number of employees at Butler County in year 2022 was 140. Average annual salary was $40,764 and median salary was $42,862. Butler County average salary is 13 percent lower than USA average and median salary is 1 percent lower than USA median salary. From 2021 to 2022, the average salary of employees at this employer increased 7.9 percent, the median salary increased 7.0 percent.