Highest salary at Clarkstown in year 2014 was $266,241. Number of employees at Clarkstown in year 2014 was 556. Average annual salary was $97,585 and median salary was $88,622. Clarkstown average salary is 108 percent higher than USA average and median salary is 104 percent higher than USA median salary. From 2013 to 2014, the average salary of employees at this employer increased 5.2 percent, the median salary increased 5.0 percent.