Highest salary at Grand Island in year 2014 was $100,097. Number of employees at Grand Island in year 2014 was 133. Average annual salary was $36,980 and median salary was $40,097. Grand Island average salary is 21 percent lower than USA average and median salary is 8 percent lower than USA median salary. From 2013 to 2014, the average salary of employees at this employer increased 1.2 percent.