Highest salary at Dewitt County in year 2020 was $142,396. Number of employees at Dewitt County in year 2020 was 85. Average annual salary was $44,621 and median salary was $40,396. Dewitt County average salary is 5 percent lower than USA average and median salary is 7 percent lower than USA median salary. From 2019 to 2020, the average salary of employees at this employer increased 12.1 percent.