Highest salary at Town of Hadley in year 2020 was $119,976. Number of employees at Town of Hadley in year 2020 was 138. Average annual salary was $37,965 and median salary was $37,098. Town of Hadley average salary is 19 percent lower than USA average and median salary is 15 percent lower than USA median salary. From 2019 to 2020, the average salary of employees at this employer increased 13.7 percent, the median salary increased 17.5 percent.