Highest salary at Belknap County in year 2022 was $153,861. Number of employees at Belknap County in year 2022 was 191. Average annual salary was $49,298 and median salary was $51,416. Belknap County average salary is 5 percent higher than USA average and median salary is 18 percent higher than USA median salary. From 2021 to 2022, the average salary of employees at this employer increased 9.3 percent, the median salary increased 9.1 percent.