Highest salary at Allegany County in year 2017 was $183,382. Number of employees at Allegany County in year 2017 was 557. Average annual salary was $42,173 and median salary was $42,561. Allegany County average salary is 10 percent lower than USA average and median salary is 2 percent lower than USA median salary. From 2016 to 2017, the average salary of employees at this employer increased 5.6 percent, the median salary increased 4.5 percent.