Highest salary at McDowell County in year 2020 was $126,408. Number of employees at McDowell County in year 2020 was 382. Average annual salary was $36,352 and median salary was $35,030. McDowell County average salary is 22 percent lower than USA average and median salary is 19 percent lower than USA median salary. From 2019 to 2020, the average salary of employees at this employer increased 11.5 percent, the median salary increased 6.3 percent.