Highest salary at Will County in year 2023 was $279,015. Number of employees at Will County in year 2023 was 2,429. Average annual salary was $67,802 and median salary was $62,256. Will County average salary is 45 percent higher than USA average and median salary is 43 percent higher than USA median salary. From 2022 to 2023, the average salary of employees at this employer increased 8.3 percent, the median salary increased 6.7 percent.