Highest salary at Sheridan County in year 2019 was $66,734. Number of employees at Sheridan County in year 2019 was 81. Average annual salary was $32,559 and median salary was $37,125. Sheridan County average salary is 31 percent lower than USA average and median salary is 15 percent lower than USA median salary. From 2018 to 2019, the median salary increased 0.1 percent.