Highest salary at Middleton District in year 2021 was $125,000. Number of employees at Middleton District in year 2021 was 373. Average annual salary was $38,413 and median salary was $42,500. Middleton District average salary is 18 percent lower than USA average and median salary is 2 percent lower than USA median salary. From 2020 to 2021, the average salary of employees at this employer increased 3.1 percent, the median salary increased 9.0 percent.