Highest salary at Northampton in year 2011 was $63,669. Number of employees at Northampton in year 2011 was 14. Average annual salary was $27,597 and median salary was $25,343. Northampton average salary is 41 percent lower than USA average and median salary is 42 percent lower than USA median salary. From 2010 to 2011, the average salary of employees at this employer increased 6.2 percent, the median salary increased 2.7 percent.