Highest salary at Martin County in year 2020 was $133,214. Number of employees at Martin County in year 2020 was 196. Average annual salary was $35,720 and median salary was $35,573. Martin County average salary is 24 percent lower than USA average and median salary is 18 percent lower than USA median salary. From 2019 to 2020, the average salary of employees at this employer increased 4.0 percent, the median salary increased 4.5 percent.