Highest salary at Warren County in year 2020 was $135,381. Number of employees at Warren County in year 2020 was 82. Average annual salary was $36,707 and median salary was $33,218. Warren County average salary is 22 percent lower than USA average and median salary is 24 percent lower than USA median salary. From 2019 to 2020, the average salary of employees at this employer increased 17.6 percent, the median salary increased 14.7 percent.