Highest salary at Lake Grove in year 2014 was $90,194. Number of employees at Lake Grove in year 2014 was 30. Average annual salary was $45,889 and median salary was $51,535. Lake Grove average salary is 2 percent lower than USA average and median salary is 19 percent higher than USA median salary. From 2013 to 2014, the average salary of employees at this employer increased 3.2 percent, the median salary increased 9.4 percent.