Highest salary at County of Cobb in year 2017 was $227,874. Number of employees at County of Cobb in year 2017 was 4,811. Average annual salary was $48,200 and median salary was $47,671. County of Cobb average salary is 3 percent higher than USA average and median salary is 10 percent higher than USA median salary. From 2016 to 2017, the average salary of employees at this employer increased 16.0 percent, the median salary increased 9.5 percent.