Highest salary at Island Park in year 2014 was $84,244. Number of employees at Island Park in year 2014 was 23. Average annual salary was $42,264 and median salary was $38,485. Island Park average salary is 10 percent lower than USA average and median salary is 11 percent lower than USA median salary. From 2013 to 2014, the average salary of employees at this employer increased 1.7 percent.