Highest salary at Mackinac County in year 2022 was $168,759. Number of employees at Mackinac County in year 2022 was 77. Average annual salary was $40,721 and median salary was $43,717. Mackinac County average salary is 13 percent lower than USA average and median salary is 1 percent higher than USA median salary. From 2021 to 2022, the average salary of employees at this employer increased 12.9 percent, the median salary increased 13.6 percent.