Highest salary at Guilderland in year 2011 was $129,059. Number of employees at Guilderland in year 2011 was 253. Average annual salary was $46,656 and median salary was $47,343. Guilderland average salary is the same as USA average and median salary is 9 percent higher than USA median salary. From 2010 to 2011, the average salary of employees at this employer increased 1.5 percent, the median salary increased 2.6 percent.