Highest salary at Sterling in year 2011 was $45,349. Number of employees at Sterling in year 2011 was 14. Average annual salary was $24,360 and median salary was $33,727. Sterling average salary is 48 percent lower than USA average and median salary is 22 percent lower than USA median salary. From 2010 to 2011, the average salary of employees at this employer increased 3.9 percent, the median salary increased 17.4 percent.