The average sergeant salary at Mason County was $46,074 , which is 40 percent lower than the average salary for this job in Kentucky, and 67 percent lower than the national average for this job . Sergeant salaries at Mason County typically range from $45,386 to $47,553 (25th to 75th percentile). The highest reported sergeant salary was $48,148. There are 5 employees at Mason County with the job title sergeant.