Highest salary at Chester in year 2010 was $138,809. Number of employees at Chester in year 2010 was 30. Average annual salary was $67,942 and median salary was $71,008. Chester average salary is 45 percent higher than USA average and median salary is 63 percent higher than USA median salary. From 2009 to 2010, the average salary of employees at this employer increased 34.1 percent, the median salary increased 30.8 percent.