Highest salary at Middleport in year 2011 was $59,408. Number of employees at Middleport in year 2011 was 17. Average annual salary was $30,562 and median salary was $38,860. Middleport average salary is 35 percent lower than USA average and median salary is 11 percent lower than USA median salary. From 2010 to 2011, the average salary of employees at this employer increased 10.1 percent, the median salary increased 10.1 percent.