Highest salary at County Of Benton in year 2018 was $130,488. Number of employees at County Of Benton in year 2018 was 323. Average annual salary was $46,817 and median salary was $48,639. County Of Benton average salary is the same as USA average and median salary is 12 percent higher than USA median salary. From 2017 to 2018, the average salary of employees at this employer increased 4.4 percent, the median salary increased 2.0 percent.