Highest salary at Grays Harbor County in year 2022 was $216,692. Number of employees at Grays Harbor County in year 2022 was 556. Average annual salary was $55,835 and median salary was $57,544. Grays Harbor County average salary is 19 percent higher than USA average and median salary is 32 percent higher than USA median salary. From 2021 to 2022, the average salary of employees at this employer increased 7.6 percent, the median salary increased 6.2 percent.