Highest salary at Richland County in year 2023 was $134,596. Number of employees at Richland County in year 2023 was 71. Average annual salary was $47,426 and median salary was $44,184. Richland County average salary is 1 percent higher than USA average and median salary is 2 percent higher than USA median salary. From 2022 to 2023, the average salary of employees at this employer increased 11.1 percent, the median salary increased 14.3 percent.