Highest salary at Warren County in year 2016 was $101,952. Number of employees at Warren County in year 2016 was 75. Average annual salary was $31,744 and median salary was $29,075. Warren County average salary is 32 percent lower than USA average and median salary is 33 percent lower than USA median salary. From 2015 to 2016, the median salary increased 2.2 percent.