Highest salary at Warren County in year 2020 was $127,373. Number of employees at Warren County in year 2020 was 206. Average annual salary was $49,921 and median salary was $49,521. Warren County average salary is 7 percent higher than USA average and median salary is 14 percent higher than USA median salary. From 2019 to 2020, the average salary of employees at this employer increased 6.7 percent, the median salary increased 1.5 percent.