Highest salary at Herkimer County in year 2016 was $157,139. Number of employees at Herkimer County in year 2016 was 742. Average annual salary was $26,592 and median salary was $29,333. Herkimer County average salary is 43 percent lower than USA average and median salary is 33 percent lower than USA median salary. From 2015 to 2016, the average salary of employees at this employer increased 0.3 percent.