Highest salary at Mclean County in year 2019 was $168,850. Number of employees at Mclean County in year 2019 was 859. Average annual salary was $40,060 and median salary was $37,713. Mclean County average salary is 15 percent lower than USA average and median salary is 13 percent lower than USA median salary. From 2018 to 2019, the average salary of employees at this employer increased 0.4 percent.