Highest salary at Island Park in year 2013 was $97,775. Number of employees at Island Park in year 2013 was 23. Average annual salary was $41,574 and median salary was $42,230. Island Park average salary is 11 percent lower than USA average and median salary is 3 percent lower than USA median salary. From 2012 to 2013, the average salary of employees at this employer increased 36.4 percent.