Highest salary at Erwin in year 2014 was $113,533. Number of employees at Erwin in year 2014 was 25. Average annual salary was $50,240 and median salary was $54,897. Erwin average salary is 7 percent higher than USA average and median salary is 26 percent higher than USA median salary. From 2013 to 2014, the median salary increased 4.2 percent.