Highest salary at Lake Grove in year 2011 was $90,312. Number of employees at Lake Grove in year 2011 was 27. Average annual salary was $47,043 and median salary was $48,438. Lake Grove average salary is the same as USA average and median salary is 11 percent higher than USA median salary. From 2010 to 2011, the average salary of employees at this employer increased 3.5 percent, the median salary increased 3.0 percent.