Highest salary at Warren County in year 2017 was $128,959. Number of employees at Warren County in year 2017 was 77. Average annual salary was $32,223 and median salary was $29,414. Warren County average salary is 31 percent lower than USA average and median salary is 32 percent lower than USA median salary. From 2016 to 2017, the average salary of employees at this employer increased 1.5 percent, the median salary increased 1.2 percent.