Highest salary at Portville in year 2012 was $55,205. Number of employees at Portville in year 2012 was 21. Average annual salary was $21,114 and median salary was $31,243. Portville average salary is 55 percent lower than USA average and median salary is 28 percent lower than USA median salary. From 2011 to 2012, the median salary increased 4.0 percent.