Highest salary at Newton in year 2017 was $137,964. Number of employees at Newton in year 2017 was 317. Average annual salary was $53,323 and median salary was $51,586. Newton average salary is 14 percent higher than USA average and median salary is 19 percent higher than USA median salary. From 2016 to 2017, the average salary of employees at this employer increased 3.7 percent, the median salary increased 3.7 percent.