Highest salary at Wallkill in year 2012 was $123,561. Number of employees at Wallkill in year 2012 was 147. Average annual salary was $51,512 and median salary was $49,891. Wallkill average salary is 10 percent higher than USA average and median salary is 15 percent higher than USA median salary. From 2011 to 2012, the average salary of employees at this employer increased 1.1 percent, the median salary increased 1.2 percent.