Highest salary at Marshall County in year 2024 was $156,506. Number of employees at Marshall County in year 2024 was 54. Average annual salary was $53,705 and median salary was $54,360. Marshall County average salary is 15 percent higher than USA average and median salary is 25 percent higher than USA median salary. From 2023 to 2024, the average salary of employees at this employer increased 8.9 percent, the median salary increased 9.5 percent.