Highest salary at Newton in year 2018 was $140,097. Number of employees at Newton in year 2018 was 314. Average annual salary was $54,606 and median salary was $52,846. Newton average salary is 17 percent higher than USA average and median salary is 22 percent higher than USA median salary. From 2017 to 2018, the average salary of employees at this employer increased 2.4 percent, the median salary increased 2.4 percent.