Highest salary at Sussex County in year 2024 was $189,758. Number of employees at Sussex County in year 2024 was 204. Average annual salary was $39,513 and median salary was $36,743. Sussex County average salary is 16 percent lower than USA average and median salary is 16 percent lower than USA median salary. From 2023 to 2024, the average salary of employees at this employer increased 11.2 percent, the median salary increased 20.8 percent.