Highest salary at Somerset County in year 2020 was $92,382. Number of employees at Somerset County in year 2020 was 85. Average annual salary was $44,554 and median salary was $47,817. Somerset County average salary is 5 percent lower than USA average and median salary is 10 percent higher than USA median salary. From 2019 to 2020, the average salary of employees at this employer increased 5.6 percent, the median salary increased 5.1 percent.