Highest salary at Freeport in year 2012 was $226,951. Number of employees at Freeport in year 2012 was 381. Average annual salary was $79,967 and median salary was $70,784. Freeport average salary is 71 percent higher than USA average and median salary is 63 percent higher than USA median salary. From 2011 to 2012, the median salary increased 1.4 percent.