Highest salary at Knox County in year 2024 was $178,708. Number of employees at Knox County in year 2024 was 479. Average annual salary was $42,246 and median salary was $41,166. Knox County average salary is 10 percent lower than USA average and median salary is 5 percent lower than USA median salary. From 2023 to 2024, the average salary of employees at this employer increased 9.6 percent, the median salary increased 8.2 percent.