Highest salary at Sangamon County in year 2018 was $177,609. Number of employees at Sangamon County in year 2018 was 735. Average annual salary was $46,286 and median salary was $43,261. Sangamon County average salary is 1 percent lower than USA average and median salary is 1 percent lower than USA median salary. From 2017 to 2018, the average salary of employees at this employer increased 1.5 percent, the median salary increased 1.3 percent.