Highest salary at McLennan County in year 2023 was $185,120. Number of employees at McLennan County in year 2023 was 1,635. Average annual salary was $41,325 and median salary was $48,100. McLennan County average salary is 12 percent lower than USA average and median salary is 11 percent higher than USA median salary. From 2022 to 2023, the average salary of employees at this employer increased 14.6 percent, the median salary increased 20.4 percent.