Highest salary at Grafton County in year 2024 was $163,430. Number of employees at Grafton County in year 2024 was 314. Average annual salary was $62,171 and median salary was $61,988. Grafton County average salary is 33 percent higher than USA average and median salary is 43 percent higher than USA median salary. From 2023 to 2024, the average salary of employees at this employer increased 12.4 percent, the median salary increased 12.7 percent.