Highest salary at North Middle in year 2016 was $131,340. Number of employees at North Middle in year 2016 was 140. Average annual salary was $50,025 and median salary was $47,924. North Middle average salary is 7 percent higher than USA average and median salary is 10 percent higher than USA median salary. From 2015 to 2016, the median salary increased 0.7 percent.