Highest salary at Mackinac County in year 2023 was $172,135. Number of employees at Mackinac County in year 2023 was 83. Average annual salary was $41,994 and median salary was $43,015. Mackinac County average salary is 10 percent lower than USA average and median salary is 1 percent lower than USA median salary. From 2022 to 2023, the average salary of employees at this employer increased 3.1 percent.