Highest salary at Richardson County in year 2024 was $91,824. Number of employees at Richardson County in year 2024 was 110. Average annual salary was $35,598 and median salary was $40,453. Richardson County average salary is 24 percent lower than USA average and median salary is 7 percent lower than USA median salary. From 2023 to 2024, the median salary increased 0.4 percent.